CAS 7493-95-0

p-Nitrophenyl α-D-galactopyranoside

Description:

p-Nitrophenyl α-D-galactopyranoside is a synthetic compound commonly used as a substrate in biochemical assays, particularly for the detection of galactosidase enzymes. It features a galactopyranoside moiety linked to a p-nitrophenyl group, which serves as a chromogenic indicator. Upon hydrolysis by galactosidase, the compound releases p-nitrophenol, resulting in a color change that can be quantitatively measured. This compound is typically a white to pale yellow crystalline solid, soluble in water and organic solvents like ethanol. Its molecular structure includes a six-membered pyranose ring, characteristic of sugars, and the nitrophenyl group, which imparts specific optical properties. The compound is stable under standard laboratory conditions but should be handled with care due to the potential toxicity of p-nitrophenol. p-Nitrophenyl α-D-galactopyranoside is widely utilized in research and diagnostic applications, particularly in microbiology and enzyme kinetics, due to its ability to provide a simple and effective means of measuring enzyme activity.

Formula: C₁₂H₁₅NO₈

InChI: InChI=1/C12H15NO8/c14-5-8-9(15)10(16)11(17)12(21-8)20-7-3-1-6(2-4-7)13(18)19/h1-4,8-12,14-17H,5H2/t8-,9+,10+,11-,12+/m1/s1

InChI key: InChIKey=IFBHRQDFSNCLOZ-IIRVCBMXSA-N

SMILES: O([C@@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1)C2=CC=C(N(=O)=O)C=C2

Synonyms:

• .alpha.-D-Galactopyranoside, 4-nitrophenyl
• 231-343-6
• 4-Nitrophenyl α-<span class="text-smallcaps">D</span>-galactopyranoside
• 4-Nitrophenyl α-<span class="text-smallcaps">D</span>-galactoside
• 4-nitrophenyl alpha-D-galactopyranoside
• Galactopyranoside, p-nitrophenyl, α-<span class="text-smallcaps">D</span>-
• NSC 89286
• p-Nitrophenyl .alpha.-D-galactopyranoside
• p-Nitrophenyl α-<span class="text-smallcaps">D</span>-galactopyranoside
• p-Nitrophenyl α-<span class="text-smallcaps">D</span>-galactoside
• p-Nitrophenyl α-galactopyranoside
• p-Nitrophenyl α-galactoside
• α-<span class="text-smallcaps">D</span>-Galactopyranoside, 4-nitrophenyl
• p-Nitrophenyl α-D-galactopyranoside
• α-D-Galactopyranoside, 4-nitrophenyl
• 4-Nitrophenylα-D-Galactopyranoside
• Galactopyranoside, p-nitrophenyl, α-D-
• p-Nitrophenyl α-D-galactoside
• 4-Nitrophenyl α-D-galactopyranoside
• Gal1-α-PNP
• PNP ALPHA-D-GALACTOPYRANOSIDE
• p-Nitrophenyl--D-galactoyranoside
• 4-Nitrophenyl-ɑ-D-galactopyranoside, 98+%
• NITROPHENYL-A-D-GALACTOPYRANOSIDE, 4-
• P-Nitrophenyl-Alpha-D-GalactopyranosideA.R.
• PNPG
• GAL1-A-PNP
• oside
• PNP-ALPHA-GAL
• 4’-nitrophenyl-b-D-galactopyranoside
• pyran&shy
• P-NITROPHENYL ALPHA-D-GALACTOSIDE
• P-NITROPHENYL-ALPHA-D-GALACTOYRANOSIDE
• PNP-ALPHA-D-GAL

4-Nitrophenyl α-D-Galactopyranoside [Substrate for α-D-Galactosidase]

CAS: 7493-95-0

Formula: C₁₂H₁₅NO₈

Purity: >98.0%(HPLC)

Color and Shape: White to Orange to Green powder to crystal

Molecular weight: 301.25

Ref: 3B-N0492

4-Nitrophenyl-α-D-galactopyranoside, 98+%

CAS: 7493-95-0

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Sci

Formula: C₁₂H₁₅NO₈

Purity: 98+%

Color and Shape: White to cream, Crystals or powder or crystalline powder

Molecular weight: 301.25

Ref: 02-L13376

4-Nitrophenyl a-D-galactopyranoside

CAS: 7493-95-0

Formula: C₁₂H₁₅NO₈

Purity: 97%

Color and Shape: Solid

Molecular weight: 301.2494

Ref: IN-DA005G7Y

4-Nitrophenyl α-D-galactopyranoside

CAS: 7493-95-0

4-Nitrophenyl α-D-galactopyranoside

Purity: ≥98%

Molecular weight: 301.25g/mol

Ref: 54-BUP16689

4-Nitrophenyl a-D-galactopyranoside

CAS: 7493-95-0

Formula: C₁₂H₁₅NO₈

Purity: ≥ 98.0%

Color and Shape: White, off-white or pale yellow powder

Molecular weight: 301.26

Ref: 7W-GC8292

4-Nitrophenyl α-D-galactopyranoside

CAS: 7493-95-0

4-Nitrophenyl α-D-galactopyranoside

Formula: C₁₂H₁₅NO₈

Purity: 98%

Color and Shape: white to off white powder

Molecular weight: 301.25g/mol

Ref: 54-BIB1433

4-Nitrophenyl α-D-galactopyranoside

CAS: 7493-95-0

4-Nitrophenyl α-D-galactopyranoside (PNP-alpha-D-Gal) (PNP-alpha-D-Gal) is an artificial substrate of 4-nitrophenyl (pNP) glycopyranoside for detecting α-

Formula: C₁₂H₁₅NO₈

Purity: 99.44%

Color and Shape: Solid

Molecular weight: 301.25

Ref: TM-T19139

p-Nitrophenyl α-D-Galactopyranoside

Controlled Product

CAS: 7493-95-0

Applications p-Nitrophenyl α-D-Galactopyranoside (cas# 7493-95-0) is a compound useful in organic synthesis.
References Anisha, G., et al.: Proc. Biochem., 44, 327 (2009), Bergstroem, M., et al.: Chem. Biol. Drug Des., 73, 132 (2009), Liu, Q., et al.: J. Biol. Chem., 283, 8545 (2008),

Formula: C₁₂H₁₅NO₈

Color and Shape: Neat

Molecular weight: 301.25

Ref: TR-N503600

4-Nitrophenyl-alpha-D-galactopyranoside

CAS: 7493-95-0

Chromogenic substrate yielding a soluble chromophore for the colorimetric assay of α-D-galactosidase upon cleavage. Used for the detection of hydrolases in tissues and membranes.

Formula: C₁₂H₁₅NO₈

Purity: Min. 99.0 Area-%

Molecular weight: 301.26 g/mol

Ref: 3D-N-4200

p-Nitrophenyl a-D-Galactopyranoside extrapure, 98%

CAS: 7493-95-0

Formula: C₁₂H₁₅NO₈

Purity: min. 98%

Color and Shape: White to off-white, Crystalline powder

Molecular weight: 301.25

Ref: SR-64685

p-Nitrophenyl-Ä-D-galactoyranoside

CAS: 7493-95-0

M02730 - p-Nitrophenyl-Ä-D-galactoyranoside

Formula: C₁₂H₁₅NO₈

Purity: 97%

Color and Shape: Solid

Molecular weight: 301.251

Ref: 10-M02730