2-NITROPHENYLGALACTOSIDE

Synonyms. 2-Nitrophenylgalactoside; o-Nitrophenol galactoside; ONPG; o-Nitrophenyl beta-D-galactopyranoside; o-Nitrophenyl beta-D-galactoside;

2-NITROPHENYLGALACTOSIDE

 

PRODUCT IDENTIFICATION

CAS RN

369-07-3

EINECS RN

 206-716-1

FORMULA

 C12H15NO8

MOLE WEIGHT

 301.25

H.S CODE

 2938.90.0000

SMILES

 [N+](c1c(O[C@H]2[C@@H]([C@@H](O)[C@H]([C@H](O2)CO)O)O) cccc1) ([O-])=O

CLASSIFICATION

Carbohydrate

EXTRA NOTES

 Substrate for the determination of β-galactosidases

 

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE

white to yellow crystalline powder

MELTING POINT

186 ~ 192 C

BOILING POINT

  

DENSITY

1.599

SOLUBILITY IN WATER

 

SOLVENT SOLUBILITY  

VAPOR DENSITY

 

log P(octanol-water)

  

AUTOIGNITION TEMP

  
pH

 

REFRACTIVE INDEX

 

FLASH POINT

 

 

STABILITY AND REACTIVITY
STABILITY Stable under normal conditions. Hygroscopic

INCOMPATIBLE MATERIALS

Strong oxidizing agents

POLYMERIZATION

Has not been reported

NFPA RATINGS

Health: 0; Flammability: 0; Instability: 0;

 

EXTERNAL LINKS & GENERAL DESCRIPTION

Google Scholar Search - 2-Nitrophenylgalactoside

Drug Information Portal (U.S. National Library of Medicine) - 2-Nitrophenylgalactoside

PubChem Compound Summary - 2-Nitrophenylgalactoside

http://www.ncbi.nlm.nih.gov/ - 2-Nitrophenylgalactoside

http://www.sigmaaldrich.com/
β-galactosidase, breaks down lactose into galactose and glucose. β-Galactosidase is not lactose specific and can act on simple galactosides. 2-Nitrophenyl β-D-galactopyranoside hydrolysis results in the release of galactose and a yellow chromogenic compound. The test substrate does not depend on an induced or constitutive permease enzyme to enter the cell, therefore reactions are rapid and occur within a 24-hour period.

 

SALES SPECIFICATION

APPEARANCE

white to yellow crystalline powder

PURITY 

98.0% min

MELTING POINT

186 ~ 192 C

SPECIFIC ROTATION

-66° ~ -74° (c=1 in water)

 

TRANSPORT & REGULATORY INFORMATION

UN NO.

Not regulated

HAZARD SYMBOL

  
PACKING GROUP  

 

SAFETY INFORMATION

HAZARD OVERVIEW

Not classified

GHS

  

SIGNAL WORD

Not classified

PICTOGRAMS

 

HAZARD STATEMENTS

None

P STATEMENTS

None
EC DIRECTIVES

 
HAZARD CODES

 

RISK PHRASES

 36/37/38

SAFETY PHRASES

 24/25-36-26