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CAS 19887-85-5

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O-nitrophenyl-A-D-galactopyranoside

Description:
O-nitrophenyl-α-D-galactopyranoside (ONPG) is a synthetic compound commonly used as a substrate in biochemical assays, particularly for the detection of galactosidase activity. It is a colorless, crystalline solid that is soluble in water and organic solvents. The compound features a nitrophenyl group, which imparts a yellow color upon hydrolysis, making it useful for spectrophotometric measurements. ONPG is a derivative of galactose and is characterized by its ability to undergo enzymatic cleavage by β-galactosidase, resulting in the release of o-nitrophenol, which can be quantitatively measured. This property makes ONPG a valuable tool in molecular biology and microbiology for studying enzyme kinetics and microbial activity. Additionally, it is important to handle ONPG with care, as it may pose health risks if ingested or inhaled, and appropriate safety measures should be taken during its use in laboratory settings.
Formula:C12H15NO8
InChI:InChI=1/C12H15NO8/c14-5-8-9(15)10(16)11(17)12(21-8)20-7-4-2-1-3-6(7)13(18)19/h1-4,8-12,14-17H,5H2/t8-,9+,10+,11+,12-/m0/s1
Synonyms:
  • 2-nitrophenyl beta-L-galactopyranoside
  • 2-nitrophenyl alpha-L-galactopyranoside
  • 2-nitrophenyl alpha-L-talopyranoside
  • 2-nitrophenyl beta-L-talopyranoside
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Found 4 products.
  • 2-Nitrophenyl a-D-galactopyranoside

    CAS:
    Formula:C12H15NO8
    Molecular weight:301.2494

    Ref: IN-DA002BS7

    ne
    To inquire
  • Ref: 7W-GC5682

    1g
    2,378.00€
    100mg
    512.00€
    250mg
    906.00€
    500mg
    1,457.00€
  • 2-Nitrophenyl α-D-galactopyranoside

    CAS:
    <p>2-Nitrophenyl α-D-galactopyranoside</p>
    Purity:>98%
    Color and Shape:White Solid-Crystalline
    Molecular weight:301.25g/mol

    Ref: 54-BICL4229

    100mg
    400.00€
    250mg
    832.00€
    500mg
    1,290.00€
  • 2-Nitrophenyl a-D-galactopyranoside

    CAS:
    <p>2-Nitrophenyl alpha-D-galactopyranoside is a chromogenic substrate used to detect the enzymatic activity of alpha-galactosidase. After cleavage, the nitrophenyl moiety is released exhibiting a light yellowish color. 2-Nitrophenyl alpha-D-galactopyranoside is used in Fabry disease screening.</p>
    Formula:C12H15NO8
    Purity:Min. 95%
    Color and Shape:White Off-White Powder
    Molecular weight:301.25 g/mol

    Ref: 3D-EN31181

    25mg
    198.00€
    50mg
    305.00€
    100mg
    438.00€
    250mg
    725.00€
    500mg
    1,088.00€