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…

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…

A colour marker to monitor the process of agarose gel electrophoresis and polyacrylamide gel electrophoresis. Bromophenol blue and orange G can also be used for this purpose. In 1% agarose gels, Xylene cyanol typically migrates at about the same rate as a 4000 base pair DNA fragment. Xylene…

Coomassie Brilliant Blue R-250/ G-250 are both offered as dry powder form and convenient ready-to-use solutions. Destaining solutions are also offered. Coomassie Brilliant Blue G-250 Dye Proteomics Grade Cas #: 6104-58-1 Molecular weight: 854.04 Molecular Formula:…

Features Synonym: Ammonium peroxodisulfate CAS#: 7727-54-0 Molecular Formula: H₈N₂O₈S₂ Molecular Weight: 228.20

TCEP is a water-soluble, odorless, non-toxic and stable protein reductant. This potent reducing agent is a popular alternative to ß-mercaptoethanol and DTT (dithiothreitol) use for most applications. The reduction potency of TCEP is twice as high as that of DTT, and TCEP is effective in…

Kanamycin is an aminoglycoside antibiotic and has a bactericidal action against many gram-negative bacteria. Kanamycin is used as a selective agent for the incorporation of the NPT II (APH3) gene in plant tissues. Store dessicated at 4°C Soluble in water PubChem Chemical ID: 32943 …

L-lactate is produced from pyruvate by the enzyme Lacate Dehydrogenase. Lactate production occurs during anaerobic glycolysis or in proliferatively active cells. Store at 2-8°C Features Synonyms: L-Lactic Acid Sodium Salt, (S)-2-Hydroxypropionic acid sodium salt, Sarcolactic…

MOLECULAR BIOLOGY GRADE   Gentamicin efficiently inhibits growth of many Gram-positive and Gram-negative microorganisms. It does so by inhibiting protein synthesis by binding to the L6 protein of the 30S ribosomal subunit. It is also effective against mycoplasma. Recommended for use…

3,3′,5,5′-Tetramethylbenzidine dihydrochloride; TMB·HCl; TMB dihydrochloride   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,…

IPTG (Isopropyl β-D-1-thiogalactopyranoside) induces activity of ß-galactosidase, an enzyme that promotes lactose utilization, by binding and inhibiting the lac repressor. In cloning experiments, the lacZ gene is replaced with the gene of interest and IPTG is then used to induce gene…

4-Nitrophenyl-α-L- fucopyranoside p-Nitrophenyl-α-L-fucoside PNP-α-L-Fuc   MOLECULAR BIOLOGY GRADE   White to off white crystalline powder   Chromogenic substrate yielding a soluble yellow chromophor for the colorimetric assay of…

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…

2-Nitrophenyl-N-acetyl- β-D- glucosaminide o-Nitrophenyl-2-acetamido-2-deoxy-beta-D-glucoside ONP-beta-D-GlcNAc   MOLECULAR BIOLOGY GRADE   White to off white crystalline powder   Chromogenic β-glucosaminidase substrate yielding a yellow solution upon cleavage. …

N6-Carbobenzyloxy-N2,N2-bis(carboxymethyl)-L-lysine is used in the synthesis of nickel-chelating fluorinated lipids for protein monolayer crystallizations. Features Synonym : N6-N2-Bis(carboxymethyl)-N6-[(phenylmethoxy)carbonyl]-L-lysine CAS#: 113231-04-2 Molecular Weight: …

4-Nitrophenyl-α-D- glucopyranoside p-Nitrophenyl-alpha-D-glucoside PNP-alpha-D-Glc   MOLECULAR BIOLOGY GRADE   Off white crystalline powder   Chromogenic substrate for alpha-D-glucosidase yielding a yellow solution upon cleavage. Also used for the detection of…

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…

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…

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…

TESTED AGAINST BOTH SENSITIVE and RESISTANT CELLS. MOLECULAR BIOLOGY GRADE   Mode of action and Anti-microbial spectrum: Ampicillin is an inhibitor of bacterial cell wall synthesis which acts by inhibiting the cross-linking of peptidoglycan. It is used in the selection of antibiotic…

PNPG (Gus); 4-Nitrophenyl-β-D-glucuronic acid; p-Nitrophenyl-β-D-glucuronide; PNP-β-D-GlcA   MOLECULAR BIOLOGY GRADE   Slightly off-white to yellow crystalline powder.   PNPG (Gus) is a chromogenic β-glucuronidase substrate yielding a yellow…

5-Bromo-4-chloro-3-indolyl octanoate 5-Bromo-4-chloro-3-indolyl caprylate 5-Bromo-4-chloro-3-indoxyl octanoate X-caprylate MOLECULAR BIOLOGY GRADE A chromogenic substrate for esterase with C8 activity. 5-Bromo-4-chloro-3-indoxyl caprylate yields a blue precipitate when cleaved.  …

TESTED AGAINST BOTH SENSITIVE and RESISTANT CELLS. ONLY AVAILABLE IN CONTINENTAL UNITED STATES MOLECULAR BIOLOGY GRADE PubChem Chemical ID: 35766 Mode of action and Anti-microbial spectrum : Hygromycin B is an aminocyclitol with a wide spectrum of activity that kills bacteria, fungi and…

Phenyl-β-D- galactopyranoside Phenyl-β-D-galactoside Ph-β-D-Gal MOLECULAR BIOLOGY GRADE White to off white crystalline powder Phenyl-β-D-galactopyranoside is a noninducing β-galactosidase substrate. It is used in selection of mutants of lacZ plasmid-based…

1-O-Methyl-β- D- glucuronic acid, sodium salt 1-O-Methylglucuronide sodium salt 1-OMe-beta-D-GlcA · Na   MOLECULAR BIOLOGY GRADE   White to light yellow crystalline powder   1-O-Methyl-β-D-glucuronic acid is a β-glucronidase inducer.   Store at…

Magenta-gal is used as an alternative to X-gal that produces a red color. Magenta-Gal is hydrolyzed by β-galactosidase to produce a red precipitate. This precipitate is insoluble in alcohol and xylenes, thus making it suitable for immunoblotting and immunocytochemical assays. Bacterial…

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-Nitrophenyl-α-D- galactopyranoside p-Nitrophenyl-alpha-D-galactoside PNP-alpha-D-Gal PNPG   MOLECULAR BIOLOGY GRADE   Off white crystalline powder   Chromogenic substrate yielding a soluble chromophor for the colorimetric assay of alpha-D-galactosidase upon…

Tos-Ala-Y  Handling Store at -15°C, protect from light. PubChem Chemical ID: 53471583 Features Synonyms:  H-TOS-ALA-Y, N-TOSYL-L-ALANYLOXYINDOLE, 1H-indol-3-yl N-[(4-methylphenyl)sulphonyl]-L-alaninate, N-[(4-Methylphenyl)sulfonyl]-L-alanine 1H-indol-3-yl ester,…

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.…

Citraconic anhydride reacts with primary amines and blocks them by creating an amide linkage and a terminal carboxylate. The linkage is stable at neutral to alkaline pH (pH >7) and at acidic conditions (pH 4) the amide linkage is rapidly hydrolyzed to release the citraconic acid and free the…

Cefsulodin (SCE-129) Cefomonil; Pseudocef MOLECULAR BIOLOGY GRADE Off-white to slightly yellow crystalline powder Anti-microbial spectrum: A 3rd generation cephelosporin with a broad spectrum of activity and further increased activity against Gram-negative organisms…