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Shop By Category | Enzymes, Inhibitors & Substrates

Enzymes, Inhibitors & Substrates
Enzymes are important biological macromolecules that allow for the control of cellular functions and are vital for effective research. Enzyme activity can be slowed or stopped using inhibitors, like Proteinase K or RNase, while substrates like X-Gluc and X-Gal are used in detection and monitoring. D-Luciferin Potassium Salt, our most popular bioluminescent substrate, can be used for in vivo and in vitro imaging. GoldBio knows that having high quality enzyme tools are important to your laboratory, and we are committed to delivering quality products at a fraction of the price.
Displaying 1-20 of 176 results.
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β-Glucosidase
Catalog ID
Size
Pricing
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G-050-100
100 KU
$ 75.00
G-050-500
500 KU
$ 225.00
Description
β-Glucosidase is an enzyme that acts upon β1-4 bonds, linking two glucose or glucose-substituted molecules (i.e., the disaccharide cellobiose). It is an exocellulase with specificity for a variety of beta-D-glycoside substrates. It catalyzes the hydrolysis of terminal nonreducing residues in beta-D-glucosides with release of glucose. β-Glucosidase from almonds is a homodimer consisting of 2 equal subunits of 65 kDa and is a glycoprotein. β-Glucosidase catalyzes the reaction of β-D-Glucoside + H2O → D-Glucose + Alcohol.Product Specifications β-Glucosidase beta-GlucosidaseBIOTECHNOLOGY GRADESource: Sweet AlmondsMW: 135 kDaConcentration: >1000 U/mg Storage/Handling: Store desiccated at -20ºC. The enzyme is soluble in water (1 mg/ml) and in 0.1M View product page →
Specifications
CAS Number
Technical Resources
α-D-Fucose
Catalog ID
Size
Pricing
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α-D-Fucose product image
F-850-5
5 g
$ 185.00
F-850-10
10 g
$ 321.00
F-850-25
25 g
$ 698.00
F-850-50
50 g
$ 1215.00
Description
α-D-Fucose is a six-carbon deoxy monosaccharide. It is equivalent to 6-deoxy-D-galactose. D-fucose acts as a non-metabolizable analogue of L-arabinose and inhibits induction of the L-arabinose operon in some bacteria. Some resistant bacteria possess a mutant araC gene where D-fucose acts as a gratuitous inducer of the L-arabinose operon. D-fucose induces β-galactosidase to some extent in Lactobacillus plantarum. α-D-fucose inhibits the eukaryotic enzyme Lysine-specific demethylase 1 (LSD1A), thereby causing gene repression. α-D-fucose is being explored in treatments for neurodegenerative diseases because of its effect on gene repression. Seen upregulated in many cancers, LSD1A overexpression pushes the cell cycle of otherwise non-transformed View product page →
Specifications
CAS Number 3615-37-0
Technical Resources
1-O-Methyl-β- D- glucuronic acid, sodium salt
Catalog ID
Size
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1-O-Methyl-β- D- glucuronic acid, sodium salt product image
M-310-5
5 g
$ 286.00
M-310-10
10 g
$ 465.00
M-310-25
25 g
$ 945.00
M-310-50
50 g
$ 1537.00
Description

1-O-Methyl-β-D-glucuronic acid, sodium salt is an inducer of β-glucuronidase, a glycosidase enzyme coded by the GUS gene.

The GUS gene is the most extensively used reporter gene, particularly in plant biology because it offers the advantage of having no background activity.

β-glucuronidase also has an important role within human digestion because this enzyme is capable of deconjugating toxins within the body and releasing them back freely into the bloodstream. There is a positive relationship between higher levels of β-glucuronidase in the colon and increased cancer risk. However, β-glucuronidase, at certain levels, is necessary, and deficiencies can result in mucopolysaccharidosis type VII or Sly syndrome in newborns.

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Specifications
CAS Number 134253-42-2
Technical Resources
1-O-Methyl-α- D- galactopyranoside (1-O-Methyl-galactoside)
Catalog ID
Size
Pricing
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1-O-Methyl-α- D- galactopyranoside (1-O-Methyl-galactoside) product image
M-270-50
50 g
$ 171.00
M-270-100
100 g
$ 321.00
M-270-250
250 g
$ 750.00
M-270-500
500 g
$ 1400.00
Description
1-O-Methyl-α- D- galactopyranoside 1-O-Methyl-galactoside 1-OMe-alpha-D-Gal MOLECULAR BIOLOGY GRADE C7H14O6 MW: 194.19 g/mol White to off-white crystalline powder A gratuitous α-galactoside inducer. Storage/Handling: Store at 2-8°C, and protect from light. View product page →
Specifications
CAS Number 3396-99-4
Technical Resources
1-O-Methyl-α-D-mannopyranoside
Catalog ID
Size
Pricing
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1-O-Methyl-α-D-mannopyranoside product image
M-485-500
500 g
$ 300.00
M-485-1
1 kg
$ 566.00
M-485-2.5
2.5 kg
$ 1335.00
M-485-5
5 kg
$ 2519.00
Description
1-O-Methyl-mannose 1-OMe-α-D-Man MOLECULAR BIOLOGY GRADE C7H14O6 MW: 194.18 g/mol View product page →
Specifications
CAS Number 617-04-9
Technical Resources
1-O-Octadecyl-2-O-methyl-sn-glycero-3-phosphocholine
Catalog ID
Size
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1-O-Octadecyl-2-O-methyl-sn-glycero-3-phosphocholine product image
O-090-250
250 mg
$ 207.00
O-090-500
500 mg
$ 359.00
Description
1-O-Stearyl-2-O-methyl-sn-glycero-3-phosphocholineEdelfosine MOLECULAR BIOLOGY GRADE C27H58NO6P MW: 523.74 g/mol Storage/Handling: Store at -15°C, and protect from light. View product page →
Specifications
CAS Number 77286-66-9
Technical Resources

No resources are available for this product.

2,3,5-Triphenyltetrazolium chloride (TTC; Tetrazolium chloride)
Catalog ID
Size
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2,3,5-Triphenyltetrazolium chloride (TTC; Tetrazolium chloride) product image
T-112-250
250 g
$ 778.00
T-112-1
1 kg
$ 1164.00
T-112-500
500 g
$ 1421.00
T-112-2.5
2.5 kg
$ 2771.00
Description

Tetrazolium red is used to visualize dehydrogenase enzyme activity. Initially, the tetrazolium solution is colorless but changes to red when it comes into contact with hydrogen. Tetrazolium red is used in a biochemical viability test for seeds. The test relies on dehydrogenase enzymes to release hydrogen ions, which subsequently reduce the colorless tetrazolium salt solution to a red compound called formazan. Living cells turn red while dead cells remain colorless.

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Specifications
CAS Number 298-96-4
Technical Resources
2-Naphthyl caprylate Octanoic acid (β-naphthyl ester)
Catalog ID
Size
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2-Naphthyl caprylate Octanoic acid (β-naphthyl ester) product image
N-100-500
500 mg
$ 143.00
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.

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Specifications
CAS Number 10251-17-9
Technical Resources
2-Naphthyl-α-D-glucopyranoside
Catalog ID
Size
Pricing
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2-Naphthyl-&#945-D-glucopyranoside product image
N-125-500
500 mg
$ 121.00
N-125-1
1 g
$ 210.00
Description
2-Naphthyl-α-D-glucopyranoside β-Naphthyl-α-glucoside β-Nap-α-D-Glc MOLECULAR BIOLOGY GRADE C16H18O6 MW: 306.32 g/mol White to slightly off-white crystalline powder Forms a colorless, clear solution when dissolved 1% in a warm water/ethanol mixture (1:1) 2-Naphthyl-α-D-glucopyranoside is a substrate for α-glucosidase. 2-naphthol is released upon hydrolyzation. By simultaneous coupling with a suitable staining reagent, such as hexazonium p-rosaniline, the corresponding red-brown azo-dye is formed. Naphthols can also be detected by fluorescence analysis. Storage/Handling: Store at 5°C. View product page →
Specifications
CAS Number 25320-79-0
Technical Resources
2-Naphthyl-α- L-fucopyranoside (β-Naphthyl-α-L-fucoside)
Catalog ID
Size
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2-Naphthyl-α- L-fucopyranoside (β-Naphthyl-α-L-fucoside) product image
N-110-500
500 mg
$ 274.00
N-110-1
1 g
$ 503.00
N-110-2.5
2.5 g
$ 1154.00
N-110-5
5 g
$ 2118.00
Description
2-Naphthyl-α- L-fucopyranoside β-Naphthyl-α-L-fucoside β-Nap-α-L-Fuc MOLECULAR BIOLOGY GRADE C16H18O5 MW: 290.32 g/mol White to off-white crystalline powder Chromogenic substrate for α-L-Fucosidase. 2-naphthol is released upon hydrolyzation. By simultaneous coupling with a suitable staining reagent, such as hexazonium p-rosaniline, the corresponding azo-dye is formed. Naphthols can also be detected by fluorescence analysis. Storage/Handling: Store at -15°C in the dark. View product page →
Specifications
CAS Number 63503-05-9
Technical Resources
2-Naphthyl-2-Naphthyl-β- D-galactopyranoside (β-Naphthyl-β-galactoside)
Catalog ID
Size
Pricing
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2-Naphthyl-2-Naphthyl-β- D-galactopyranoside (β-Naphthyl-β-galactoside) product image
N-120-1
1 g
$ 70.00
N-120-2.5
2.5 g
$ 82.00
N-120-10
10 g
$ 221.00
Description
2-Naphthyl-β- D-galactopyranoside β-Naphthyl-β-galactoside; β-Nap-β-D-Gal MOLECULAR BIOLOGY GRADE C16H18O6 MW: 306.32 g/mol White to off-white crystalline powder 2-Naphthyl-beta-D-galactopyranoside is a substrate for beta-galactosidase. 2-naphthol is released upon hydrolyzation. By simultaneous coupling with a suitable staining reagent, such as hexazonium p-rosaniline, the corresponding red-brown azo-dye is formed. Naphthols can also be detected by fluorescence analysis. Storage/Handling: Store at -15°C in the dark. View product page →
Specifications
CAS Number 33993-25-8
Technical Resources
2-Nitrophenyl-1-thio-β-D- galactopyranoside
Catalog ID
Size
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2-Nitrophenyl-1-thio-β-D- galactopyranoside product image
N-390-500
500 mg
$ 218.00
N-390-1
1 g
$ 433.00
N-390-2.5
2.5 g
$ 1072.00
N-390-5
5 g
$ 2122.00
Description
2-Nitrophenyl-1-thio-β-D- galactopyranoside o-Nitrophenyl-1-thio-beta-D-galactopyranoside ONP-1-thio-beta-D-Gal MOLECULAR BIOLOGY GRADE C12H15NO7S MW: 317.32 g/mol Light yellow crystalline powder Forms a yellow, clear solution when dissolved 1% in methanol. Storage/Handling: Store at -15°C, and protect from light. View product page →
Specifications
CAS Number 1158-17-4
Technical Resources
2-Nitrophenyl-N-acetyl-β-D-glucosaminide
Catalog ID
Size
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2-Nitrophenyl-N-acetyl-β-D-glucosaminide product image
N-210-5
5 g
$ 215.00
N-210-10
10 g
$ 409.00
N-210-25
25 g
$ 972.00
N-210-50
50 g
$ 1853.00
Description
2-Nitrophenyl-N-acetyl- β-D- glucosaminide o-Nitrophenyl-2-acetamido-2-deoxy-beta-D-glucoside ONP-beta-D-GlcNAc MOLECULAR BIOLOGY GRADE C14H18N2O8MW: 342.31 g/mol White to off white crystalline powder Chromogenic β-glucosaminidase substrate yielding a yellow solution upon cleavage. Store at -15°C and protect from light. View product page →
Specifications
CAS Number 13264-92-1
Technical Resources
3-Indoxyl phosphate bis (2-amino-2-methyl-1,3-propanediol) salt
Catalog ID
Size
Pricing
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3-Indoxyl phosphate bis (2-amino-2-methyl-1,3-propanediol) salt product image
I-490-500
500 mg
$ 187.00
I-490-1
1 g
$ 288.00
I-490-2.5
2.5 g
$ 481.00
I-490-5
5 g
$ 740.00
Description
3-Indoxyl phosphate bis (2-amino-2-methyl- 1,3-propanediol) salt Y™-phosphate bis(2-amino-2-methyl-1,3-propanediol) salt Y™-phos • 2 AMPD MOLECULAR BIOLOGY GRADE C8H8NO4P·2C4H11NO2 MW: 423.41 g/mol White to off-white powder Histochemical substrate for alkaline phosphatase. Storage/Handling: Store desiccated at -15°C in the dark. Hygroscopic. View product page →
Specifications
CAS Number 107475-12-7
Technical Resources
4-Aminophenyl phosphate monosodium salt hydrate
Catalog ID
Size
Pricing
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4-Aminophenyl phosphate monosodium salt hydrate product image
A-292-500
500 mg
$ 165.00
A-292-1
1 g
$ 318.00
A-292-2.5
2.5 g
$ 658.00
Description

P-aminophenyl phosphate (pAPP) can be used as a substrate for alkaline phosphatase enzymatic reactions in order to electrochemically quantify ALP activity.

The enzymatic reaction results in the production of phenol, which can be quantified and used to analyze ALP concentrations.

ALP is a naturally occurring enzyme and can be found in human tissue in the liver, bone and intestines. Usual concentrations of ALP range between 25-100 IU/L. A significant spike outside of that range could act as a signal for many diseases.

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Specifications
CAS Number 108084-47-5
Technical Resources
4-Aminophenyl-β-D-galactopyranoside
Catalog ID
Size
Pricing
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4-Aminophenyl-β-D-galactopyranoside product image
A-280-500
500 mg
$ 88.00
A-280-1
1 g
$ 159.00
A-280-2.5
2.5 g
$ 362.00
A-280-5
5 g
$ 658.00
Description
4-Aminophenyl-β-D-gal MOLECULAR BIOLOGY GRADE C12 H17 N O6 MW: 271.27 g/mol 4-Aminophenyl-β-D-galactopyranoside is a substrate for β-galactosidase. It is also a weak β-D-galactosidase inducer and can be used in affinity chromatography for isolation of galactose-binding. The 4-aminophenyl releases upon cleavage by β-galactosidase. It can then be assayed by electro-oxidation to 4-imino quinone while recording changes in the potential or current galvanic system. Storage/Handling: Store dry at -20°C. Protect from light. View product page →
Specifications
CAS Number 5094-33-7
Technical Resources
4-Chloro-1-naphthol
Catalog ID
Size
Pricing
More Info
4-Chloro-1-naphthol product image
C-273-50
50 g
$ 103.00
C-273-100
100 g
$ 180.00
C-273-250
250 g
$ 383.00
C-273-500
500 g
$ 716.00
Description
4-Chloro-1-naphthol 4CN MOLECULAR BIOLOGY GRADE C 10H7ClO MW: 178.620 g/mol Off-white to gray crystalline powder (needles) Substrate for horseradish peroxidase (HRP). HRP catalyzes oxidation of 4-chloro-1-naphthol in the presence of peroxide to the blue, insoluble product 4-chloro-1-naphthon. It is used for both blotting and immunohistochemical staining, but is less sensitive than other precipitating HRP substrates. Storage/Handling: Store at -20°C, and protect from light.PubChem ID:11787 View product page →
Specifications
CAS Number 604-44-4
Technical Resources
4-Methylumbelliferyl caprylate
Catalog ID
Size
Pricing
More Info
4-Methylumbelliferyl caprylate product image
M-540-1
1 g
$ 121.00
M-540-2.5
2.5 g
$ 273.00
M-540-5
5 g
$ 530.00
M-540-10
10 g
$ 990.00
Description
4-Methylumbelliferyl caprylate Octanoic acid 4-methylumbelliferyl ester 4-MU-caprylate MOLECULAR BIOLOGY GRADE C18H22O4 MW: 302.37 g/mol White to off-white crystalline powder Fluorogenic substrate for esterase with C8 activity, yielding a blue fluorescent solution upon cleavage. Used for the identification of Salmonella spp. based on the detection of caprylate esterase. Storage/Handling: Store at -15°C, and protect from light and humidity. Literature: 1. U. Bottiroli, F. Carozzi, Method for the immediate identification of Salmonella cultures. European Patent 326 6 35 B1 (1992). 2. P.M. Aguirre, et al., Rapid fluorescence method for screening Salmonella spp. from enteric differential agars. J. Clin. Microbiol. 1990, 28, 148. View product page →
Specifications
CAS Number 20671-66-3
Technical Resources
4-Methylumbelliferyl palmitate
Catalog ID
Size
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4-Methylumbelliferyl palmitate product image
M-690-250
250 mg
$ 64.00
M-690-500
500 mg
$ 91.00
M-690-1
1 g
$ 141.00
M-690-2.5
2.5 g
$ 265.00
Description

4-Methylumbelliferyl palmitate is used as a fluorogenic substrate for a subclass of esterases called lipase.

Lipase is an enzyme that assists in the hydrolysis of fats. They have a large role in digestion as well as dietary lipid transport.

Lysosomal acid lipase (LAL), in particular, is required for the hydrolysis of cholesterol esters which are then delivered into the lysosome. Deficiencies in LAL are primarily associated with two diseases: cholesteryl ester storage disease (CESD) and Wolman’s disease (WD). 4-Methylumbelliferyl palmitate has often been used as one of the lipase substrates in studies involving either of these diseases.

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Specifications
CAS Number 17695-48-6
Technical Resources
4-Methylumbelliferyl phosphate bis (2-amino- 2-methyl-1,3-propanediol) salt
Catalog ID
Size
Pricing
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4-Methylumbelliferyl phosphate bis (2-amino- 2-methyl-1,3-propanediol) salt product image
M-710-2.5
2.5 g
$ 185.00
M-710-5
5 g
$ 321.00
M-710-10
10 g
$ 558.00
M-710-25
25 g
$ 1213.00
Description
4-Methylumbelliferyl phosphate bis (2-amino- 2-methyl-1,3-propanediol) salt MUP·2 AMPD MOLECULAR BIOLOGY GRADE C10H9O6P·2C4H11NO2MW: 466.43 g/mol White to off-white crystalline powder Sensitive fluorogenic substrate for fluorometric and UV-spectrophotometric assays of phosphatases. Storage/Handling: Store at -15°C in the dark. View product page →
Specifications
CAS Number 107475-10-5
Technical Resources
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