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⇒ Wako Product Update Bio-No.2
Rat Glucagon ELISA Kit wako
Rat GLP-1 ELISA Kit wako
Rat C-Peptide ELISA Kit wako
Rat Leptin ELISA Kit wako
Leptin, Mouse, recombinant
Aldose Reductase, and the Inhibitors
Sorbitol Dehydrogenase
Reagents for Construction of Diabetes Model
HMG-CoA Reductase Inhibitors

Alphabetical Index
Rat Glucagon ELISA Kit wako
Cat. #297-57101 96 tests
Glucagon is known as a hormone secreted from the pancreas and
intestines. This kit aims at measurement of rat Glucagon peptide
secreted from pancreatic α-cells by competitive format. Pancreatic
Glucagon plays a important role in regulating sugar levels by elevating
sugar in the blood, together with insulin.
Mixture of biotinylated rat Pancreatic Glucagon and that in the sample
or the standard material binds to rabbit antibody specific to rat
Pancreatic Glucagon coated on the microplate well surface in
competitive fashion. Sequencial reaction with HRP-conjugated
streptavidin results in a formation of HRP-streptavidin-biotin-antibody
complex in the well, which catalyzes hydrogen peroxide, generating
color by oxidation of an acceptor substrate.
Dynamic range : 50 ~ 10,000 pg/mL
Specific to rat, mouse and human pancreatic Glucagon, but not cross-
reactive to intestinal Glucagon nor Glucagon-like peptides as GLP-1
and GLP-2.
[Kit Contents (96 tests)]
1.Antibody-coated Microtiter Plate
(Anti Rat Glucagon, Rabbit)
1 plate
2. Rat Glucagon Standard 10 ng
3. Biotinylated Rat Glucagon for 6 mL
4. HRP-conjugated Streptavidin 12 mL
5. Chromogen (OPD Tablet) 2 tablets
6. Chromogen Diluent Solution 26 mL
7. Buffer A 10 mL
8. Buffer B 15 mL
9. Wash Stock Solution (20 x) 50 mL
10. Stop Solution (1 mol/L H2SO4) 12 mL
11. Adhesive Plate Cover 4 covers

Rat GLP-1 ELISA Kit wako
Cat. #291-59201 96 tests
Glucagon-like peptide-1 (GLP-1) is an incretin hormone, which is synthesized in intestinal endocrine cells. This peptide is
known to increase insulin secretion by glucose stimulation and suppress glucagon secretion.
The kit is applicable to measure rat, mouse and human GLP-1.
[Kit Contents]
1. Antibody-coated Microtiter Plate
(Anti Rabbit IgG, Goat) 1 plate
1 plate
2. Rat GLP-1 Standard 25 ng
3. Biotinylated Rat GLP-1 for 6 mL
4. Anti Rat GLP-1, Rabbit 6 mL
5. HRP-conjugated Streptavidin 200 µL
6. HRP-conjugated Streptavidin Diluent 12 mL
7. Chromogen (OPD Tablet) 2 tablets
8. Chromogen Diluent Solution 26 mL
9. Wash Stock Solution (20 x) 50 mL
10. Buffer 10 mL
11. Stop Solution 12 mL
12. Adhesive Plate Cover 3 pieces
1. Sensitivity Dynamic Range : 206 ~ 50,000 pg/mL
2. Reproducibility
• Intra-assay C.V.(%) = 5.4 ~ 6.6
• Inter-assay C.V.(%) = 5.5 ~ 18.9
3. Specificity
Applicable to measure rat, mouse and human GLP-1.
Little cross-reactivity exists with rat GLP-2, human
GLP-2, human glycentin, and human glucagon.
4. Spike recovery: 89 ~ 110 % (Plasma)
5. Sample volume: 30µL

Rat C-Peptide ELISA Kit wako
Cat. #295-57401 96 tests
Insulin C-Peptide (InsC-Peptide) is derived from proinsulin by
processing in vivo, and released into blood in almost equal molarity to
insulin. By measurement of InsC-Peptide in the serum, insulin
secretion on pancreatic β cells in insulin-administrated rats and rats
bearing antibody to insulin could be monitored.
On the surface of the microplate wells, goat anti rabbit IgG is coated,
and when sample is reacted with rabbit anti rat InsC-Peptide and
biotinylated rat InsC-Peptide in the well, the goat antibody captures the
complex of the rabbit antibody and rat InsC-Peptide formed in
competitive reaction. Subsequent reaction with horseradish peroxides
(HRP)-conjugated streptavidin to the complex on the well surface
results in labeling of the complex with HRP which generates the signal
for the presence of rat InsC-Peptide in the sample.
Dynamic range : 1.56 ~ 50 ng/mL
Specific to rat InsC-Peptide.
mouse C-Peptide I (30 %); mouse C-Peptide II (3 %).
[Kit Contents (96 tests)]
1.Antibody-coated Microtiter Plate 1 plate
2. Rat C-Peptide Standard 50 ng
3. Biotinylated Rat C-Peptide for 8 mL
4. Anti Rat C-Peptide, Rabbit 12 mL
5. HRP-conjugated Streptavidin 12 mL
6. Chromogen (OPD Tablet) 2 tablets
7. Chromogen Diluent Solution 24 mL
8. Wash Stock Solution (20 x) 50 mL
9. Buffer 35 mL
10. Stop Solution (1 mol/L H2SO4) 12 mL
11. Adhesive Plate Cover 3 covers

Rat Leptin ELISA Kit wako
Cat. #297-57601 96 tests
Leptin, secreted from fatty cells, is known as a hormone controlling
body fat by suppression of eating and increase of energy metabolism.
It is reported, however, that expression of leptin gene in fatty tissue and
concentration of leptin in blood are at high levels in obese people and
model animals of obesity.
[Principle of the assay]
This kit is a sandwich-format of ELISA with two antibodies specific to
rat leptin. Monoclonal antibody to leptin is coated on the microplate
well, which captures leptin in sample. Following reaction with HRP-
conjugated rabbit anti rat leptin antibody, forms HRP labeled antigen-
antibody complex on the well, which reports the signal of leptin
amount in the sample by chromogenic reaction associated with
catalysis of hydrogen peroxide.
Dynamic range :
• Samples for serum and plasma : 312.5 ~ 20,000 pg/mL
• Samples for others than serum and plasma : 78.1 ~ 5,000 pg/mL
Specific to rat Leptin, but only slightly cross-reactive to human Leptin.
[Kit Contents (96 tests)]
1. Antibody-coated Microtiter Plate
(Anti Rat Leptin, monoclonal antibody)
1 plate
2. Rat Leptin Standard 20 ng
3. HRP-conjugated Antibody, rabbit 6 mL
4. Chromogen (OPD Tablet) 2 tablets
5. Chromogen Diluent Solution 24 mL
6. Wash Stock Solution (20 x) 50 mL
7. Buffer A 20 mL
8. Buffer B 20 mL
9. Stop Solution (1 mol/L H2SO4) 12 mL
10. Adhesive Plate Cover 2 covers

Leptin, Mouse, recombinant
for Cytobiology
Cat. #121-05041 1 mg
-20ºC, Lyophilized
Source : Mouse leptin cDNA expressed in E. coli.
Form : Lyophilized (sterilized by filtration)
Endotoxin : < 0.1 ng/ug (1 EU/µg)
Molecular Weight : 16,000
Biological Activity : Leptin, when administered (5µg per gram of body weight) once daily for a period of 14 days to obese mouse
models (ob / ob. NZO), was proven to be effective in terms of body weight, metabolism, and blood glucose level.

Aldose Reductase, Human, recombinant / Sorbitol Dehydrogenase
Although much of the blood glucose enters the cells with the help of insulin, there also exists an alternate route of glucose
metabolism which does not use insulin: the polyol pathway. With this polyol metabolizing pathway, aldose reductase converts glucose
to sorbitol, which in turn is converted to fructose by sorbitol dehydrogenase. The sorbitol accumulates in cells because of its slow
metabolism, and increased osmotic pressure in the cells cause fluid to flow into the cells, resulting in the swelling of these. This is
suggested to be the cause of cellular malfunction. The polyol pathway has been reported to play an important role in the retina, lens,
kidney, and peripheral nerves, and these enzymes can be used as a useful tool for further studies of diabetic complications.
In comparison with commercially available enzyme from sheep liver, sorbitol dehydrogenase shows low reactivity with sugar alcohols
such as xylitol, mannitol, and inositol, and exhibits a high substrate specificity toward D-sorbitol, which allows for accurate
determination of quantity of sorbitol. in living body.
For Research of Diabetic Complications
Aldose Reductase, Human, recombinant (expressed in Insect Cells), Solution
for Biochemistry
Cat. #012-23761 0.4 units
-20ºC, D/I, Liquid
Molecular Weight : Approx. 34 kDa
Appearance : Dissolved in 5 mmol/L DTT, 50 v/v% glycerol, and 50 mmol/L phosphate buffer (pH 7.0)
Specific Activity : 1.4 ± 0.4 units/mg protein
Aldose Reductase catalyzes the reduction of glucose to sorbitol. Sorbitol is subsequently converted to fructose by sorbitol
dehydrogenase. These two enzymes are key components of the polyol pathway, the alternate route of glucose metabolism. It is
suggested that aldose reductase is involved in the pathogenesis of diabetic complications and the inhibitors continue to be
developed at a vigorous pace.
[Reference] 1) Brownlee M. The pathology of Diabetic Complications, Diabetes, 54: 1615.1624 (2005).

Aldose Reductase Inhibitor
Sulfuretin, 95.0+%
for Biochemistry
Cat. #195-12491 20 mg
2-10ºC, Solid
Sulfuretin, characterized by aurones, is an old compound in the flavonoid family. Recently,
however, its inhibitory effect on aldose reductase was elucidated. Aldose Reductase Inhibitors
inhibit accumulation of sorbitol in tissues and therefore are useful in research on preventing
diabetic complications including neuropathy, retinopathy, and nephropathy. This product is a
synthetic compound.

Aldose Reductase Inhibitor
for Biochemistry
Cat. #017-19421 500 mg
2-10ºC, Solid
AD-5467 inhibits aldose reductase (IC50 = 51 nmol/l ) and platelet aggregation1,2).
As sorbitol accumulates excessively in tissues and platelet aggregation is increased in diabetic
conditions, AD-5467 is useful in research on preventing and treating diabetic complications.
1) Tawada, H. et al : Chem. Pharm. Bull., 38 (5), 1238 (1990).
2) Sugiyama, Y. et al : Elsevier Science Publishers BV, 645 (1990).

For Accurate Quantification of Sorbitol
Sorbitol Dehydrogenase (EC
for Biochemistry
Cat. #199-12391 50 units/vial
-20ºC, Lyophilized
Sorbitol Dehydrogenase is an essential enzyme involved in polyol metabolism. Sorbitol Dehydrogenase, isolated from
microorganisms, is characterized by its high substrate specificity and it degrades D-sorbitol, used as a substrate, into fructose. It
is believed that diabetic complications are caused by sorbitol accumulation. The conventional enzymes on the market react
with sugars other than sorbitol; however, Sorbitol Dehydrogenase with high substrate specificity enables accurate quantification
of sorbitol.
When reacted with typical sugars as substrates including glucose, mannitol, and galactose (at 0.5mol/L concentration)
independently or in a mixture, the absorbance did not change, proving high substrate specificity of Sorbitol Dehydrogenase.
Sobitol Dehydrogenase is useful not only in research on aggravation mechanism of complications but also in sorbitol
quantification in foods.

Flavonoids derived from Shekwasha
Nobiletin and tangeretin are polymethoxy flavonoids contained in the juice of Shekwasha, a
citrus fruit. These flavonoids are receiving attention for a variety of beneficial effects such as
reducing elevation of blood pressure and plasma glucose levels.
1) Rooprai, H. K, et al. : Neuropathol. Appl. Neurobiol., 27(1), 29 (2001).
2) Datla, K. P., et al. : Neuroreport, Dec. 4, 12(17), 3871 (2001).
Wako Cat. # Description Package Size Physical Data Solubility Condition
149-07521 Nobiletin, 95.0+%(HPLC) 10 mg MW : 402.39 (C21H22O8) Soluble in methanol -20ºC, Solid
208-15671 Tangeretin, 95.0+%(HPLC) 10 mg MW : 372.37 (C20H2OO7)
CAS : 481-53-8
Soluble in methanol -20ºC, Solid
[Related Products] Polyphenols
a. Theaflavins, Black Tea Extracts
Wako Cat. # Description Package Size Appearance Condition
201-15161 Theaflavin, 90+% 1 mg Lyophilized -20ºC, D/I
202-15191 Theaflavin-3-gallate, 90+% 1 mg Lyophilized
204-15271 Theaflavin-3'-gallate, 90+% 1 mg Lyophilized
208-15171 Theaflavin-3,3'-digallate, 90+% 1 mg Lyophilized
b. Catechins, green tea extracts
Wako Cat. # Description Package Size Appearance Condition
059-06751 (-)-Epicatechin, from Green Tea, 98+% 10 mg Lyophilized 2-10ºC
055-06753 50 mg
052-06741 (-)-Epicatechin Gallate, from Green Tea, 98+% 10 mg Lyophilized
058-06743 50 mg
056-06761 (-)-Epigallocatechin, from Green Tea, 98+% 10 mg Lyophilized
052-06763 50 mg
059-05411 (-)-Epigallocatechin Gallate, 90+% 100 mg Lyophilized
032-18231 Catechin Mixture, from Green Tea, 85+% 1 g Lyophilized
c. Isoflavones, Soybean extracts
Wako Cat. # Description Package Size Appearance Condition
013-18801 6"-O-Acetyldaidzin, 90+ % 1 mg Solid -20ºC, D/I
010-18811 6"-O-Acetylgenistin, 90+ % 1 mg Solid
010-18791 6"-O-Acetylglycitin, 90+ % 1 mg Solid
040-27741 Daidzin, from Soybean, 98+% 10 mg Lyophilized 2-10ºC
046-27743 100 mg
043-28071 Daidzein, from Soybean, 98+% 10 mg Lyophilized
049-28073 100 mg
077-04691 Glycitin, from Soybean, 98+% 10 mg Lyophilized
073-04693 100 mg
070-04701 Glycitein, from Soybean, 98+% 10 mg Lyophilized
076-04703 100 mg
070-04681 Genistin, from Soybean, 98+% 10 mg Lyophilized
076-04683 100 mg
546-00171 Genistein, 98+% 20 mg Lyophilized
093-04771 Isoflavone (Aglycon) Mixture, Crude, from Soybean, 95+% 1 g Lyophilized
132-13821 6"-O-Malonyldaidzin, 90+ % 1 mg Solid -20ºC, D/I
136-13841 6"-O-Malonylgenistin, 90+ % 1 mg Solid
139-13831 6"-O-Malonylglycitin, 90+ % 1 mg Solid

Betacellulin2) is a member of the EGF family, initially isolated from a mouse pancreatic β-cell carcinoma (insulinoma) cell line β
TC-3. The mature form of BTC exists as a glycoprotein composed of 80 amino acid residues processed from a 177-residue
membrane-bound precursor. Betacellulin induces insulin expression in AR42J rat pancreatic carcinoma cells3,4) and promotes
proliferation of fibroblasts, vascular smooth-muscle cells, and retinal pigment epithelial cells.
Betacellulin, Human, recombinant
Cat. #025-14381 10 µg
-20ºC, Lyophilized
Appearance : Lyophilized from 100 µg/mL PBS containing 0.1% BSA
Source : Human betacellulin cDNA expressed in E. coli
Molecular Weight : 9.1 k (theoretical value calculated from 80 amino acids)
Endotoxin : 0.1 ng/µg or less
Betacellulin, Rat, recombinant
Cat. #022-14391 10 µg
-20ºC, Lyophilized
Appearance : Lyophilized from 100 µg/mL PBS containing 0.1% BSA
Source : Rat betacellulin cDNA expressed in E. coli
Molecular Weight : 9.2 k (theoretical value calculated from 80 amino acids)
Endotoxin : 0.1 ng/µg or less
1) Tada, H., Seno, M., Yamada, H., Sasada, R. and Igarashi, K. : Biochim. Biophys. Acta, 1492, 285 (2000).
2) Seno, M., Tada, H., Kosaka, M., Sasada, R., Igarashi, K., Shing, Y., Folkman, J., Ueda, M. and Yamada, H. : Growth Factors, 13, 181 (1996).
3) Ishiyama, N., Kanzaki, M., Seno, M., Yamada, H., Kobayashi, I. and Kojima, I. : Diabetologia, 41, 623 (1998).
4) Mashima, H., Yamada, S., Tajima, T., Seno, M., Yamada, H., Takeda, J. and Kojima, I. : Diabetes, 48, 304 (1999).
5) Tada, H., Sasada, R., Kawaguchi, Y., Kojima, I., Gullick, W.J., Salomon, D.S., Igarashi, K., Seno, M. and Yamada, H. : J.Cell. Biochem., 72, 423 (1999).
6) Mashima, H., Ohnishi, H., Wakabayashi, K., Mine, T., Miyagawa, J., Hanafusa, T., Seno, M., Yamada, H. and Kojima, I. : J.Clin.Invest., 97, 1647 (1996).

For Construction of Diabetes Model
for Biochemistry

2-10ºC, Solid
Streptozotocin is an antibiotic isolated from Streptomyces achromogenes and possesses specific cytotoxicity on pancreatic β-cells.
Streptozotocin is widely used for construction of diabetes animal models.
Appearance : Slightly yellowish powder
Solubility : Soluble in water, ethanol, and acetone
Toxicity : Oral LD50 264 mg/kg (mouse)

HMG-CoA Reductase Inhibitors
Competitive inhibitors of 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) reductase are the rate limiting enzymes in
cholesterol biosynthesis. By blocking the conversion of HMG-CoA to the cholesterol precursor mevalonate, these agents inhibit
hepatic synthesis of cholesterol, causing a subsequent stimulation of LDL receptors and an increase in the clearance of LDL and
its precursor particles from the circulation.
Singer, I. I., et al., Proc. Natl. Acad. Sci. USA, 85, 5264 (1988). / Endo, A., et al., FEBS LETTERS, 72, 323 (1976).
Wako Cat. # Description Package
Physical Data Condition
033-17301 Compactin
95+% (HPLC)
25 mg MW : 390.51 (C23H34O5)
CAS : 73573-88-3
mp : 152ºC
LD50(mus, orl) 2 gm/kg
125-04581 Lovastatin*
95+% (HPLC)
25 mg MW : 404.55 (C24H36O5)
CAS : 75330-75-5
mp : 174.5ºC
LD50(mus, orl) 1 gm/kg
193-12051 Simvastatin
95+% (HPLC)
25 mg MW : 418.57 (C25H38O5) 2-10ºC,
199-12053 100 mg
162-19821 Pravastatin Sodium Salt
95+% (HPLC)
25 mg MW : 446.51 (C23H35NaO7) 2-10ºC,
168-19823 100 mg
* : Not available for sale in the US.

Resistin, recombinant
Resistin : molecule termed as "Resistin" signifying resistance to insulin
Resistin, Human Cat. #187-01801 25 µg
Resistin, Mouse Cat. #184-01811 25 µg
-20ºC, D/I Lyophilized
Resistin is a dimeric hormone secreted by mast cells and is attracting attention as a substance which impairs insulin action.
TNF-α and free fatty acid are known as resistins.
Serum resistin concentration decreases with administration of antidiabetic drugs and is elevated when obesity occurs. It was
also found that administration of resistin-neutralizing substance to obese mice restored serum glucose levels and insulin action.
Based on these findings, it is believed that resistin is a key link between obesity and diabetes.
Human resistin
Description : freeze dried from 10 mmol/L sodium citrate (pH 3.0). Filtered and sterilized.
Human resistin Mouse Resistin
Appearance Lyophilized from the filter sterilized 10 mol/L sodium citrate (pH 3.0) Lyophilized from the filter sterilized 20 mmol/L Tris (pH 8.0)
Source Human resistin cDNA expressed in E. coli. Source : Mouse resistin cDNA expressed in E. coli.
Molecular Weight 19,500 20,200
Endotoxins < 0.1 ng/µg (1 EU/µg) < 0.1 ng/µg (1 EU/µg)
1) Steppan, C.M., et al.: Nature, 409, 307 (2001).

Acrp30, globular domain, Mouse, recombinant
Acrp30 : substance which improves insulin resistance
Cat. #017-19541 25 µg
-20ºC, D/I Lyophilized
Acrp30 is a mouse homologue of adiponectin1). Adiponectin/Acrp30 is a a dipocytokine secreted by adipose tissues. Unlike
TNF-α or leptin, the serum levels of Acrp30 is known to decrease as obesity increases. It was recently reported that injection of
adiponectin to diabetic mice improved insulin resistance2).
Mouse globular domain is a decomposition product of Acrp30 with molecular weight of 16,000 comprising 145 amino acids3).
It is characterized by more potent activity than Acrp30.
Appearance : Lyophilized from the filter sterilized 5 mmol/L Tris (pH 7.6)
Source : Mouse globular domain Acrp30- cDNA expressed in E. coli.
Endotoxin : < 0.1 ng/µg (1 EU/µg)
Reconstitution : Dissolve with 5 mmol/L Tris (pH 7.6) to make 0.1~1.0 mg/mL solution.
1) Maeda, K. et al.: Biochem. Biophys. Res. Commun., 221, 286 (1996).
2) Yamauchi, T. et al.: Nat. Med., 7, 941 (2001)
3) Scherer, P.E., et al.: J. Biol. Chem., 270, 26746 (1995).

for Biochemistry
Cat. #207-15641 500 mg
2-10ºC, Solid
TMP-153 is an ACAT (acyl-CoA : cholesterol acyltransferase) inhibitor which inhibits
cholesterol absorption1,2).
1) Tawada, H. et al : J. Med. Chem., 37, 2079 (1994).
2) Sugiyama, Y. et al : Atherosclerosis, 113, 71 (1995).

Wako Cat. # Description Grade Package Size
018-18731 Acetohexamide - 10 g
016-18732 25 g
078-03881 Glibenclamide for Biochemistry 5 g
076-03882 25 g
071-04731 Gliclazide for Biochemistry 10 g
079-04732 25 g
202-15211 Tolazamide for Biochemistry 5 g
200-15212 25 g
018-15291 L-Aminocarnitine for Biochemistry 10 mg
028-10052 Buformine Hydrochloride for Biochemistry 25 g
114-00471 Karanjin for Biochemistry 500 mg
209-09172 Tolbutamide for Biochemistry 25 g
086-05441 D-3-Hydroxybutyrate Dehydrogenase, from Pseudomonas sp. for Biochemistry 5 mg
337-43721 Ghreline (Human) for Peptide 0.1 mg
334-43731 Ghreline (Rat) for Peptide 0.1 mg
331-43501 CART (Human, 55-102) for Peptide 0.1 mg
338-43511 CART (Rat, 55-102) for Peptide 0.1 mg
339-43661 Agouti-related Protein (Human, 86-132) for Peptide 0.1 mg
A Acetohexamide
6"-O-Acetyldaidzin, from Soybean
6"-O-Acetylgenistin, from Soybean
6"-O-Acetylglycitin, from Soybean
Acrp 30, globular domain, Mouse, recombinant
Agouti-related Protein (Human, 86-132)
Aldose Reductase, Human, recombinant
B Betacellulin, recombinant, Human/Rat
Buformine Hydrochloride
C CART (Human, 55-102)/(Rat, 55-102)
Catechin Mixture, from Green Tea
Rat C-Peptide ELISA Kit wako
D Daidzein, from Soybean
Daidzin, from Soybean
E (-)-Epicatechin, from Green Tea
(-)-Epicatechin Gallate, from Green Tea
(-)-Epigallocatechin, from Green Tea
(-)-Epigallocatechin Gallate, from Green Tea
F Flavonoids
G Genistein, from Soybean
Genistin, from Soybean
Ghreline, Human/Rat
Rat GLP-1 ELISA Kit wako
Rat Glucagon ELISA Kit wako
Glycitein, from Soybean
G Glycitin, from Soybean
H D-3-Hydroxybutyrate Dehydrogenase, from Preudomonas sp.
I Isoflavone (Aglycon) Mixture, Crude, from Soybean
K Karanjin
L Leptin, Mouse, recombinant
Rat Leptin ELISA Kit wako
M 6"-O-Malonyldaidzin, from Soybean
6"-O-Malonylgenistin, from Soybean
6"-O-Malonylglycitin, from Soybean
N Nobiletin
P Polyphenols
Pravastatin Sodium Salt
R Rat GLP-1 ELISA Kit wako
Rat C-Peptide ELISA Kit wako
Rat Glucagon ELISA Kit wako
Rat Leptin ELISA Kit wako
Resistin, recombinant, Human/Mouse
S Simvastatin
Sorbitol Dehydrogenase
T Tangeretin
Theaflavin, from Black Tea
Theaflavin-3,3'-digallate, from Black Tea
Theaflavin-3-gallate, from Black Tea
Theaflavin-3'-gallate, from Black Tea
All products are sold for laboratory use only. They are not for use in humans.
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