4-Nitrophenyl-β-D- xylopyranoside p-Nitrophenyl-β-D-xylopyranoside PNP-β-D-Xyl   MOLECULAR BIOLOGY GRADE   White to off white powder   Chromogenic β-xylosidase substrate, yielding a yellow solution upon cleavage.   Store at -15°C and…

Nitrotetrazolium blue chloride; NBT; Nitro blue tetrazolium chloride; Nitro-TB MOLECULAR BIOLOGY GRADE NBT is used in combination with 5-bromo-4-chloro-3-indoxyl phosphate (BCIP) to detect alkaline phosphatase activity in blotting techniques and in situ hybridization chemistry. BCIP acts…

5-Bromo-4-chloro-3-indolyl β-D-galactopyranoside is most commonly known as X-Gal. X-gal is a histochemical substrate for β-galactosidase which cleaves X-Gal to yield an insoluble blue precipitate.    X-Gal is a mainstay in molecular biology cloning applications in which it is…

4-Methylumbelliferyl phosphate free acid MUP   MOLECULAR BIOLOGY GRADE   White to off-white crystalline powder   Sensitive fluorogenic substrate for fluorometric and UV-spectrophotometric assays of phosphatases. 4-Methylumbelliferyl phosphate is an indicator of…

L-Lysine 7-amido-4- methylcoumarin acetate salt H-Lys-AMC · AcOH   MOLECULAR BIOLOGY GRADE Off white to white crystalline powder   Forms a colorless, clear solution when dissolved 5% in water.   Substrate for aminopeptidase b yielding a blue…

Tested and Certified for in vivo imaging. Luciferin is a common bioluminescent reporter used for in vivo imaging of the expression of luciferase. This water soluble substrate for the Firefly luciferase enzyme utilizes ATP and Mg2+ as co-factors to emit a characteristic yellow-green emission in…

4-Nitrophenyl-N-acetyl-β- D-glucosaminide p-Nitrophenyl-2-acetamido-2-deoxy-β-D-glucopyranoside PNP-β-D-GlcNAc   MOLECULAR BIOLOGY GRADE   Off white crystalline powder   Chromogenic β-Glucosaminidase substrate yielding a yellow solution upon…

Resazurin, sodium salt Diazoresorcinol   MOLECULAR BIOLOGY GRADE Black crystalline powder   Transition of pH Indicator: 3.8 - 6.5 orange to violet. Used in Resazurin Microtiter Assay for rapid detection of multidrug-resistant Mycobacterium tuberculosis. Used in…

H-Ala-AMC·TFA MOLECULAR BIOLOGY GRADE H-Ala-AMC·TFA is a fluorogenic substrate for aminopeptidase that yields a blue fluorescent solution. Useful in differentiating gram-positive bacteria from gram-negative bacteria. Store at -15°C in a dry place. Protect from light. …

4-Methylumbelliferyl-β- D-galactopyranoside 4-MU-β-D-Gal   MOLECULAR BIOLOGY GRADE   White to off-white powder   Fluorogenic substrate for β-D-galactosidase, yielding a blue fluorescent solution upon cleavage.    Store at -15°C…

X-Sulfate potassium salt; 5-Bromo-4-chloro-3-indoxyl sulfate, potassium salt MOLECULAR BIOLOGY GRADE X-Sulfate K is a slightly off-white to faint-yellowish powder that is used as a chromogenic substrate for aryl-sulfatase. X-Sulfate K yields a blue precipitate when cleaved. Store at…

4-Nitrophenyl-N-acetyl- β-D-galactosaminide p-Nitrophenyl-2-acetamido-2-deoxy-β-D-galactoside; PNP-β-D-GalNAc   MOLECULAR BIOLOGY GRADE   White to off-white crystalline powder   Chromogenic substrate for N-acetyl-β-D-galactosaminidase,…

Tested and Certified for in vivo imaging Luciferin is a common bioluminescent reporter used for in vivo imaging of the expression of luciferase. This water soluble substrate for the Firefly luciferase enzyme utilizes ATP and Mg2+ as co-factors to emit a characteristic yellow-green emission in…

4-Aminophenyl phosphate monosodium salt hydrate p-aminophenyl phosphate (pAPP)    MOLECULAR BIOLOGY GRADE   Store at -15°C, protect from light.   Features CAS#:  108084-47-5 Molecular Formula:  C₆H₇NO₄PNa …

5,5'-dithio-bis-(2-nitrobenzoic acid) (DTNB)   Ellman's reagent is a versatile, water-soluble compound for quantifying free sulfhydryl groups in solution. It reacts with a free sulfhydryl group to yield a mixed disulfide and 2-nitro-5-thiobenzoic acid (NTB), a measurable yellow…

Indoxyl β-D-glucuronide cyclohexylammonium 3-Indoxyl-β-D-glucuronic acid cyclohexylammonium salt Y™-β-D-glucuronide CHX salt Y™-β-D-GlcA • CHX   MOLECULAR BIOLOGY GRADE   White to off-white crystalline powder   …

5-Bromo-4-chloro-3-indoxyl-β-D-glucopyranoside X-β-D-glucoside X-β-D-Glc EINECS 239-603-0 Beilstein: 1552603 S-Phrases S24/25,S22 MDL MFCD00063690 Store at -15°C, keep dry, protect from light. Features CAS#: 15548-60-4 Molecular…

5-Bromo-4-chloro-3-indoxyl-α-D-glucopyranoside MOLECULAR BIOLOGY GRADE X-α-D-Glucoside is a white to off-white microcrystalline powder that is used as a chromogenic substrate for α-D-glucosidase, yielding a blue precipitate. It is used for the detection of Staphylococcus…

3,3’,5,5’-Tetramethylbenzidine, free base, TMB,    MOLECULAR BIOLOGY GRADE   TMB is an excellent colorimetric substrate for detection of horseradish peroxidase labelled probes and is used with peroxidase and peroxidase coupled systems, particularly in…

L-Tryptophan 7-amido-4-methylcoumarin hydrochloride H-Trp-AMC · HCl MOLECULAR BIOLOGY GRADE White to off white powder Forms a clear, colorless solution when dissolved 0.5% in methanol/water (1:1) Substrates of glycosidases, phosphatases and esterases are commonly used in…

5-Bromo-4-chloro-3-indoxyl-β-D-glucuronic acid sodium salt; X-β-D-GlcA·Na MOLECULAR BIOLOGY GRADE X-β-D-glucuronide sodium salt is a substrate for β-glucuronidase (GUS), yielding a blue precipitate upon cleavage. X-β-D-glucuronide sodium salt is highly accepted…

Iodonitrotetrazolium chloride (INT) is an electron acceptor used in various colorimetric assays. The chemical has been mainly documented for its measurement of dehydrogenase activity. INT dye is often used to visualize dehydrogenase activity histochemically as well as western blot staining and…

 2-Naphthyl-α-D-glucopyranoside β-Naphthyl-α-glucoside β-Nap-α-D-Glc   MOLECULAR BIOLOGY GRADE   White to slightly off white crystalline powder   Forms a colorless, clear solution when dissolved 1% in a warm water/ethanol mixture (1:1) …

Tested and Certified for in vivo imaging Luciferin is a common bioluminescent reporter used for in vivo imaging of the expression of luciferase. This water soluble substrate for the Firefly luciferase enzyme utilizes ATP and Mg2+ as co-factors to emit a characteristic yellow-green emission in…

L-Glutamic acid α-(7-amido-4-methylcoumarin) H-Glu-AMC MOLECULAR BIOLOGY GRADE White to off white powder Forms a colorless, clear solution when dissolved 1% in 80% acetic acid. Fluorogenic substrate for aminopeptidase a yielding a blue fluorescent solution upon cleavage. Store…

Isopropyl-β-D-thioglucuronic acid, sodium salt IPTGlcA · Na   MOLECULAR BIOLOGY GRADE     Off-white to brownish microcrystalline powder   Isopropyl-β-D-thioglucuronic acid induces β-D-glucuronidase and therefore enhances…

Magenta-phosphate p toluidine salt; 5-Bromo-6-chloro-3-indoxyl phosphate, p-toluidine salt MOLECULAR BIOLOGY GRADE Magenta-phos PT is a white to off-white microcrystalline powder that is used as a substrate for visualization of alkaline phosphatase activity. The end product is insoluble and…

4-Nitrophenyl-α-D- maltohexaoside p-Nitrophenyl-alpha-D-maltohexaoside PNP-alpha-D-maltohexaoside   MOLECULAR BIOLOGY GRADE   Off-white to yellow crystalline powder   Chromogenic substrate for α-amylase, yielding a yellow solution upon cleavage. …

(X-glu, X-glcA, BCIG)  5-Bromo-4-chloro-3-indoxyl-beta-D-glucuronide cyclohexylammonium salt   MOLECULAR BIOLOGY GRADE   Purity: greater than 99% (HPLC)   Thin Layer Chromatogram: single spot    Biological Activity: indigo-blue assay   Elemental…

2-Naphthyl-β- D-galactopyranoside β-Naphthyl-β-galactoside; β-Nap-β-D-Gal   MOLECULAR BIOLOGY GRADE   White to off-white crystalline powder   2-Naphthyl-beta-D-galactopyranoside is a substrate for beta-galactosidase. 2-naphthol is released upon…

4-Methylumbelliferyl phosphate bis (2-amino- 2-methyl-1,3-propanediol) salt MUP·2 AMPD   MOLECULAR BIOLOGY GRADE   White to off-white crystalline powder   Sensitive fluorogenic substrate for fluorometric and UV-spectrophotometric assays of phosphatases.   …

4-Methylumbelliferyl-N- acetyl-β-D- galactoside 4-Methylumbelliferyl-2-acetamido-2-deoxy-beta-D-galactopyranoside 4-MU-beta-D-GalNAc   MOLECULAR BIOLOGY GRADE   White to off white powder   Fluorogenic substrate for N-acetyl-beta-D-galactosaminidase.…