Products for Classifying Bacteria
2-Naphthyl caprylate Octanoic acid (β-naphthyl ester)
Catalog ID | Size | Pricing | |
---|---|---|---|
N-100-500 | 500 mg | $ 75.00 | |
N-100-1 | 1 g | $ 125.00 | |
N-100-5 | 5 g | $ 438.00 |
Description
2-Naphthyl caprylate is a chromogenic substrate for carboxylesterase and lipase. 2-naphthol is released upon hydrolyzation. By simultaneous coupling with a diazonium salt, the corresponding azo-dye is formed.
Naphthols can also be detected by fluorescence analysis, and can be used in a colorimetric assay for the extracellular lipase of Pseudomonas fluorescent B52.
Product Specifications
Catalog ID | N-100 |
---|---|
CAS # | 10251-17-9 |
MW | 270.37 g/mol |
Grade | MOLECULAR BIOLOGY GRADE |
Storage/Handling | Store at -20°C. Protect from light. |
4-Methylumbelliferyl phosphate, free acid
Catalog ID | Size | Pricing | |
---|---|---|---|
M-700-10 | 10 g | $ 370.00 |
Description
4-Methylumbelliferyl phosphate (MUP) is a sensitive fluorogenic substrate for fluorometric and UV-spectrophotometric assays of phosphatase.
Phosphotase activity has long been studied due to its importance in cellular function. Upon dephosphorylation, MUP yields fluorescent 4-methylumelliferone (4-MU). This reaction has been used to spot PCR amplified products in ELISA and to classify bacteria.
More specifically, MUP can act as an indicator of C. perfringens because of its ability to detect phosphatase which is a highly specific indicator of C. perfringens.
Product Specifications
Catalog ID | M-700 |
---|---|
CAS # | 3368-04-5 |
MW | 256.15 g/mol |
Grade | MOLECULAR BIOLOGY GRADE |
Storage/Handling | Store desiccated at -20°C. Protect from light. |
5-Bromo-4-chloro-3-indoxyl-2-acetamido-2-deoxy-β-D-galactopyranoside (X-β-D-GalNAc)
Catalog ID | Size | Pricing | |
---|---|---|---|
B-260-100 | 100 mg | $ 77.00 | |
B-260-250 | 250 mg | $ 132.00 | |
B-260-500 | 500 mg | $ 198.00 | |
B-260-1 | 1 g | $ 290.00 | |
B-260-2.5 | 2.5 g | $ 605.00 |
Description
Used as a chromogenic substrate for N-Acetyl-β-D-galactosaminidase, yielding a blue precipitate. It is also used to detect Candida albicans.
Product Specifications
Catalog ID | B-260 |
---|---|
CAS # | 129572-48-1 |
MW | 449.68 g/mol |
Grade | MOLECULAR BIOLOGY GRADE |
Storage/Handling | Store desiccated at -20°C. Protect from light. |
5-Bromo-4-chloro-3-indoxyl-α-D-glucopyranoside
Catalog ID | Size | Pricing | |
---|---|---|---|
B-380-100 | 100 mg | $ 80.00 | |
B-380-500 | 500 mg | $ 257.00 | |
B-380-1 | 1 g | $ 438.00 |
Description
X-α-D-Glucoside is a white to off-white microcrystalline powder that is used as a chromogenic substrate for α-D-glucosidase, which yields a blue precipitate. It is used for the detection of Staphylococcus aureus and species within Bacilli. It is also used in the isolation of Enterobacter sakazakii.
Product Specifications
Catalog ID | B-380 |
---|---|
CAS # | 108789-36-2 |
MW | 408.64 g/mol |
Grade | MOLECULAR BIOLOGY GRADE |
Storage/Handling | Store at -20°C. Protect from light. |
5-ethynyl-2’-deoxyuridine (5-EdU)
Catalog ID | Size | Pricing | |
---|---|---|---|
E-980-100 | 100 mg | $ 79.00 | |
E-980-250 | 250 mg | $ 135.00 | |
E-980-500 | 500 mg | $ 195.00 | |
E-980-1 | 1 g | $ 295.00 |
Description
Product Specifications
Catalog ID | E-980 |
---|---|
CAS # | 61135-33-9 |
MW | 252.22 g/mol |
Storage/Handling | Store desiccated at -20°C. |
Basic Fuchsin
Catalog ID | Size | Pricing | |
---|---|---|---|
F-060-25 | 25 g | $ 79.00 | |
F-060-100 | 100 g | $ 189.00 |
Description
Basic fuchsin is a fluorescent dye composed of rosaniline, magenta II, pararosaniline and new fuschsine. Basic fuchsin staining is certified to use for the detection of acid-fast bacilli and is commonly used in the Ziehl Neelsen staining method.
This dye has also been shown to stain tubercle Bacillus and to compare E. coli and Aerobacter aerogenes.
Product Specifications
Catalog ID | F-060 |
---|---|
CAS # | 632-99-5 |
MW | 337.85 g/mol |
Grade | MOLECULAR BIOLOGY GRADE |
Brilliant Green
Catalog ID | Size | Pricing | |
---|---|---|---|
B-080-100 | 100 g | $ 87.00 |
Description
Brilliant Green is a stain for differentiating E. coli from S. typhosa. It is also used in bacteriological media.
Product Specifications
Catalog ID | B-080 |
---|---|
CAS # | 633-03-4 |
MW | 482.63 g/mol |
Grade | CERTIFIABLE GRADE |
Storage/Handling | Store at room temperature. |
C-390
Catalog ID | Size | Pricing | |
---|---|---|---|
C-390-100 | 100 mg | $ 129.00 | |
C-390-250 | 250 mg | $ 307.00 | |
C-390-500 | 500 mg | $ 582.00 | |
C-390-1 | 1 g | $ 1,105.00 |
Description
C-390 is an antibacterial agent which is used for selective isolation of Pseudomonas aeruginosa from other bacterial species.
Product Specifications
Catalog ID | C-390 |
---|---|
CAS # | 77769-31-4 |
MW | 490.05 g/mol |
Grade | MOLECULAR BIOLOGY GRADE |
Storage/Handling | Store at room temperature. Protect from light. |
Indoxyl β-D-glucuronide cyclohexylammonium
Catalog ID | Size | Pricing | |
---|---|---|---|
I-480-500 | 500 mg | $ 253.00 | |
I-480-1 | 1 g | $ 359.00 | |
I-480-2.5 | 2.5 g | $ 689.00 |
Description
3-Indoxyl-β-D-glucuronic acid is used in detection and enumeration of E. coli. This chromogenic substrate is used for β-D-glucuronidase, and yields a blue precipitate upon cleavage.
Product Specifications
Catalog ID | I-480 |
---|---|
CAS # | 35804-66-1 |
MW | 408.46 g/mol |
Grade | MOLECULAR BIOLOGY GRADE |
Storage/Handling | Store desiccated at -20°C. Protect from light. |
L-Alanine 4-nitroanilide hydrochloride
Catalog ID | Size | Pricing | |
---|---|---|---|
A-200-5 | 5 g | $ 63.00 | |
A-200-10 | 10 g | $ 94.00 | |
A-200-25 | 25 g | $ 188.00 | |
A-200-50 | 50 g | $ 298.00 | |
A-200-100 | 100 g | $ 939.00 |
Description
H-Ala-pNAHCl is a substrate for L-alanine aminopeptidase, which is an enzyme that is localized in bacterial cell walls responsible for the cleavage of L-alanine from various peptides. Significant L-alanine aminopeptidase activity is specific to gram-negative microbes. Therefore, H-Ala-pNAHCl can be used in support of evidence that an organism is gram-positive or gram-negative. It is split by L-alanine aminopeptide into L-alanine and 4-nitroanine. The latter compound causes bacterial suspensions to turn yellow.
Product Specifications
Catalog ID | A-200 |
---|---|
CAS # | 31796-55-1 |
MW | 245.66 g/mol |
Grade | MOLECULAR BIOLOGY GRADE |
Storage/Handling | Store at -20°C. Protect from light. |
L-Alanine 7-amido-4-methylcoumarin, trifluoroacetate salt
Catalog ID | Size | Pricing | |
---|---|---|---|
A-190-1 | 1 g | $ 78.00 |
Description
H-Ala-AMCTFA (L-Alanine 7-amido-4-methylcoumarin, trifluoroacetate salt) is a fluorogenic substrate for aminopeptidase that yields a blue fluorescent solution. This substrate is useful in differentiating between gram-positive and gram-negative bacteria.
Product Specifications
Catalog ID | A-190 |
---|---|
CAS # | 96594-10-4 |
MW | 360.29 g/mol |
Grade | MOLECULAR BIOLOGY GRADE |
Storage/Handling | Store desiccated at -20°C. Protect from light. |
L-Arabinose
Catalog ID | Size | Pricing | |
---|---|---|---|
A-300-25 | 25 g | $ 25.00 | |
A-300-100 | 100 g | $ 55.00 | |
A-300-250 | 250 g | $ 115.00 | |
A-300-500 | 500 g | $ 209.00 | |
A-300-1 | 1 kg | $ 279.00 | |
A-300-2 | 2 x 1 kg | $ 449.00 | |
A-300-5 | 5 kg | $ 919.00 |
Description
L-Arabinose is an arabinose isomer widely found in nature, while D-arabinose is less common. L-Arabinose is a constituent of many biopolymers that make up plant cell walls.
This monosaccharide is often used in cell culture media, serving as a bacterial carbon source, and can be used to distinguish between bacteria based on their fermentation abilities.
L-Arabinose, in the absence of glucose, induces transcription of the ara operon in E. coli that encodes L-arabinose catabolizing enzymes. It does this by binding to the AraC protein and activating the PBAD promoter. The PBAD promoter is used in plasmid vectors as a switch for protein expression that can be turned on by L-arabinose or turned off by addition of glucose.
Product Specifications
Catalog ID | A-300 |
---|---|
CAS # | 87-72-9 |
MW | 150.13 g/mol |
Grade | MOLECULAR BIOLOGY GRADE |
Storage/Handling | Store at room temperature. |
L-Malic acid, disodium salt
Catalog ID | Size | Pricing | |
---|---|---|---|
M-100-100 | 100 g | $ 127.00 | |
M-100-250 | 250 g | $ 260.00 | |
M-100-500 | 500 g | $ 500.00 |
Description
L-Malic acid, disodium salt is a dicarboxylic acid used to differentiate microorganisms based on their varying metabolic properties. It is a source of CO2 in the Calvin cycle and an intermediate of the citric acid cycle.
Product Specifications
Catalog ID | M-100 |
---|---|
CAS # | 138-09-0 |
MW | 178.05 g/mol |
Grade | MOLECULAR BIOLOGY GRADE |
Storage/Handling | Store at room temperature. |