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Enzyme research is quite important in many areas of the life sciences. J&K is proud of its ability to provide novel, stable and high sensitivity Chromogenic Substrates, Colorimetric Substrates, Fluorescent Substrates, and Inhibitors. These substrates and Inhibitors are widely used in enzyme assays, ELISA, blotting, imaging, immunohistochemical methods and many other applications. These applications include basic research, drug discovery, diagnostics, and food safety areas.
J&K Scientific will meet your requirements from research to large-scale manufacturing.

■ Chromogenic Substrates

Cat. No.
Description
CAS
for Enzyme
Adenosine, 99%
Alkaline Phosphatase
L-Alanine, 99%
Alanine Transaminase
4-Aminoantipyrine, 98%
Peroxidase
L-Aspartic acid, 98%
Transaminase
229255
L-Aspartic acid magnesium salt dihydrate, 98%
Transaminase
5-Bromo-4-chloro-3-indolyl-N-acetyl-β-D-glucosaminide, 98%
β-D-Acetylglucosaminidase
5-Bromo-4-chloro-3-indolyl-α-D-N-acetylneuraminic acid sodium salt, 98%
Neuraminidase
5-Bromo-4-chloro-3-indolyl β-D-galactopyranoside/X-GAL, 99%
β-Galactosidase
5-Bromo-4-chloro-3-indolyl β-D-glucopyranoside, 98%
β-Glucuronidase
5-Bromo-4-chloro-3-indolyl-β-D-glucuronide sodium salt trihydrate/X-GlcA, 98%
β-Glucuronidase
5-Bromo-4-chloro-3-indolyl-β-D-glucuronide cyclohexylammonium salt/X-GlcA, 98%
β-Glucuronidase
N-Carbobenzyloxyglycine-4-nitrophenyl ester, 99%
Proteinase
2-Chloro-4-nitrophenyl α-L-fucopyranoside, 98%
L-Gucosidase
2-Chloro-4-nitrophenyl β-D-galactopyranoside, 98%
β-Galactosidase
2-Chloro-4-nitrophenyl-β-D-maltotrioside, 97%
β-Amylase
Creatine phosphate disodium salt tetrahydrate, 99%
Creatine Kinase
1,3-Dibromopropane, 99%
Haloalkane Dehalogenases
3-Dimethylaminobenzoic acid, 99%
Peroxidase
N-[3-(2-Furyl)acryloyl]-L-phenylalanyl-glycyl-glycine, 98%
human angiotensin I-converting enzyme (ACE)
D-Glucose-6-phosphate disodium salt hydrate, 98%
6-Phosphogluconic Dehydrogenase
D-Glucose 6-phosphate sodium salt, 98%
6-Phosphogluconic Dehydrogenase
L-Glutamic acid γ-(3-carboxy-4-nitroanilide) ammonium salt, 98%
γ-Glutamyl Transferase
L-Glutamic acid γ-(4-nitroanilide), 98%
γ-Glutamyl Transpeptidase
L-Glutathione, 99%
Glutathione S-Transferase
Glycylglycine, 99%
γ-Glutamyl Transferase
Gly-Pro p-nitroanilide p-toluenesulfonate salt, 98%
Glycyl Proline Dipeptidyl Aminopeptidase(GPDA)
3-Hydroxybutyric acid sodium salt, 99%
Lactate Dehydrogenase
Inosine 5'-monophospate disodium salt hydrate, 98%
Inosine 5′-monophosphate Dehydrogenase
α-Ketobutyric acid sodium salt, 98%
Lactate Dehydrogenase Isoenzymes
L-Lactic acid lithium salt, 99%
Lactate Dehydrogenase
L-Leucine-p-nitroanilide, 99%
Leucine Aminopeptidase
6'-Methyl-2'-pyridinyl 2-(acetylamino)-2-deoxy-1-thio-β-D-glucopyranoside/MPT-NAG, 98%
N-Acetyl-Glucosaminidase
4-Nitrophenyl-N-acetyl-β-D-galactosaminide, 98%
β-N-Acetylhexosaminidase
4-Nitrophenyl N-acetyl-β-D-glucosaminide, 98%
N-Acetyl-Glucosaminidase
4-Nitrophenyl-β-D-cellobioside, 98%
Cellulase
4-Nitrophenyl β-D-galactopyranoside, 98%
β-Galactosidase
4-Nitrophenyl α-D-glucopyranoside, 98%
α-Glucosidase
4-Nitrophenyl β-D-glucopyranoside, 99%
β-Glucosidase
4-Nitrophenyl-β-D-glucuronide, 99%
β-Glucuronidase
4-Nitrophenyl β-D-lactopyranoside, 98%
Alkaline Phosphatase
4-Nitrophenyl β-D-xylopyranoside, 98%
β-Xylosidase
4-Nitrophenyl α-L-arabinofuranoside, 98%
α-L-Arabinofuranosidase
4-Nitrophenyl α-D-mannopyranoside, 98%
α-Mannosidase
L-Serine, 99%
Serine Hydroxymethyl Transferase
Sodium pyruvate, 99%
Lactate Dehydrogenase

■ Colorimetric Substrates

Cat. No.
Description
CAS
for Enzyme
Acetylthiocholine iodide, 98%
Acetylcholinesterase
3-Amino-9-ethylcarbazole, 95%
Peroxidase
5-Aminosalicylic acid, 98.5%
Peroxidase
2,2'-Azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt/ABTS, 98%
Peroxidase
5-Bromo-4-chloro-3-indolyl acetate, 99%
Esterase
5-Bromo-4-chloro-3-indolyl phosphate disodium salt, 98%
Alkaline Phosphatase
5-Bromo-4-chloro-3-indolyl phosphate p-toluidine salt, 98%
Alkaline Phosphatase
5-Bromo-6-chloro-3-indolyl phosphate p-toluidine salt, 98%
Alkaline Phosphatase
S-Butyrylthiocholine iodide, 98%
Cholinesterase
4-Chloro-1-naphthol, 98%
Peroxidase
3,3'-Diaminobenzidine, 99%
Peroxidase
3,3'-Diaminobenzidine tetrahydrochloride hydrate, 98%
Horseradish Peroxidase
o-Dianisidine, 98%
Alkaline Phosphatase
3,3'-Dimethoxybenzidine dihydrochloride, 99%
Peroxidase
2-Nitrophenyl β-D-galactopyranoside, 98%
β-Galactosidase
p-Nitrophenyl phosphate disodium salt hexahydrate, 98%
Alkaline phosphatase
Nitrotetrazolium Blue chloride, 98%
Alkaline phosphatase
Phenolphthalein monophosphate di(cyclohexylammonium) salt, 90%
Alkaline phosphatase
o-Phenylenediamine, 99.5%
Peroxidase
3,3',5,5'-Tetramethylbenzidine, 99%
Peroxidase
3,3',5,5'-Tetramethylbenzidine dihydrochloride, 98%
Peroxidase

■ Fluorescent Substrates

Cat. No.
Description
CAS
for Enzyme
7-Amino-4-methylcoumarin, 98%
Cystine aminopeptidase
7-Ethoxycoumarin, 99%
CYP2B6
Fluorescein di-β-D-galactopyranoside/FDG, 98%
β-Galactosidase
3-(4-Hydroxyphenyl)propionic acid, 99%
Peroxidase
7-Hydroxycoumarin-3-carboxylic acid ethyl ester, 98%
Peroxidase
α-Ketoglutaric acid, 99%
Alkaline Phosphatase
L-Leucine p-nitroanilide hydrochloride, 98%
Leucine Aminopeptidase
D-Luciferin, 99%
Luciferase
D-Luciferin potassium salt, 98%
Luciferase
D-Luciferin sodium salt, 98%
Luciferase
4-Methylumbelliferyl heptanoate, 98%
Esterases and Lipases
4-Methylumbelliferyl-N-acetyl-α-D-neuraminic acid sodium salt, 97%
Neuraminidase
4-Methylumbelliferyl-β-D-glucuronide dihydrate/MUG, 99%
β-Glucuronidase
4-Methylumbelliferyl β-D-xylopyranoside, 98%
β-Xylosidase
Z-Gly-Pro p-nitroanilide, 98%
Prolyl Endopeptidase

■ Inhibitors

Cat. No.
Description
CAS
Acenaphthenequinone, 95%
Allopurinol, 98%
4-Amidinophenylmethanesufonyl fluoride hydrochloride, 97%
3-Aminobenzamide, 98%
4-Aminobenzamidine dihydrochloride, 98%
4-(2-Aminoethyl)benzenesulfonyl fluoride hydrochloride, 99%
6-Aminohexanoic acid, 99%
2-Amino-4-hydroxypteridine, 97%
3-Amino-1H-1,2,4-triazole, 95%
Apigenin, 98%
L-Arg(NO2)-Ome·HCl, 98%
5-Azacytidine, 99%
3'-Azido-3'-deoxythymidine, 98%
O-6-Benzylguanine, 98%
2-Bromo-4'-methoxyacetophenone, 98%
N-tert-Butyl-α-phenylnitrone, 98%
Caffeic acid, 99%
(S)-(+)-Camptothecin, 98%
Capsaicin, 99%
Captopril, 98%
Chlorogenic acid, 98%
Chlorhexidine dihydrochloride, 96%
Chrysin, 99%
Colchicine, 97%
Curcumin, 98%
D609 potassium salt, 98%
Daminozide, 99%
Daidzein, 98%
2'-Deoxy-5-fluorouridine, 98%
Diacerein, 98%
2,4-Diamino-6-hydroxypyrimidine, 98%
2,5-Di-tert-butylhydroquinone, 99%
4,5-Dimethoxy-2-nitrobenzaldehyde, 85%
Dipyridamole, 98%
Ellagic acid, 98%
Emodin, 95%
(-)-Epigallocatechin gallate, 98%
Ethylenediaminetetraacetic acid ferric sodium salt, 98%
Ethylenediaminetetraacetic acid tetrasodium salt hydrate, 98%
N-Ethylmaleimide, 99%
Etoposide, 98%
Flurbiprofen, 99%
Geldanamycin, 95%
Genistein, 99%
1-Hydrazinophthalazine hydrochloride, 99%
Ibuprofen, 98%
Iodoacetamide, 98%
Isoliquiritigenin, 98%
Levamisol hydrochloride, 99%
Kaempferol, 98%
Lovastatin, 98%
Melatonin, 99%
S-Methylisothiourea hemisulfate salt, 99%
Milrinone, 99%
Myricetin, 98%
Nω-Nitro-L-arginine, 98%
6-Nitroindazole, 97%
5-Nitro-1,10-phenanthroline, 98%
Nitrotetrazolium Blue chloride, 98%
Omeprazole, 98%
Oxyresveratrol, 98%
Paclitaxel, 98%
Parthenolide, 98%
1,10-Phenanthroline monohydrate, 99%
O-Phosphorylethanolamine, 95%
Piceatannol, 96%
Procaine hydrochloride, 99%
2-Propylpentanoic acid, 98%
Resveratrol, 98%
Spermidine, 99%
Spermidine trihydrochloride, 99%
Spermine, 98%
Sodium butyrate, 98%
Theophylline, 98%
α-Toluenesulfonyl fluoride, 99%
Topiramate, 99%
(+)-S-Trityl-L-cysteine, 97%
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