4-NITROPHENYLGALACTOSIDE

Synonyms. 4-Nitrophenylgalactoside; p-Nitrophenol galactoside; PNPG; p-Nitrophenyl beta-D-galactopyranoside; p-Nitrophenyl beta-D-galactoside; (2R,3R,4S,5R,6S)-2-(Hydroxymethyl)- 6-(4-nitrophenoxy)oxane-3,4,5-triol;

4-NITROPHENYLGALACTOSIDE

 

PRODUCT IDENTIFICATION

CAS RN

3150-24-1

EINECS RN

 221-584-5

FORMULA

 C12H15NO8

MOLE WEIGHT

 301.25

H.S CODE

 2938.90.0000

SMILES

 O1[C@H]([C@@H]([C@@H](O)[C@H]([C@H]1CO)O)O)Oc1ccc(cc1) [N+]([ O- ]) =O

CLASSIFICATION

Carbohydrate, Photoaffinity Label, Substrate

EXTRA NOTES

  

 

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE

white to yellow crystalline powder

MELTING POINT

180 ~ 184 C

BOILING POINT

 582 C

DENSITY

1.599

SOLUBILITY IN WATER

710 mg/l
SOLVENT SOLUBILITY  

VAPOR DENSITY

 

log P(octanol-water)

 -0.59

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 - 4-Nitrophenylgalactoside

Drug Information Portal (U.S. National Library of Medicine) - 4-Nitrophenylgalactoside

PubChem Compound Summary - 4-Nitrophenylgalactoside

http://www.ncbi.nlm.nih.gov/ - 4-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

179 ~ 183 C

SPECIFIC ROTATION

-80° ~ -86° (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