L-(-)-THREITOL

PRODUCT IDENTIFICATION
CAS NO.

2319-57-5

L-(-)-THREITOL

EINECS NO.  
FORMULA HOCH2[CH(OH)]2CH2OH
MOL WT. 122.12

H.S. CODE

  

TOXICITY

 
SYNONYMS (2S,3S)-(-)-1,2,3,4-Butanetetrol;
SMILES

 

CLASSIFICATION

  

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE white fine crystalline powder
MELTING POINT 87 - 90C
BOILING POINT  
SPECIFIC GRAVITY  
SOLUBILITY IN WATER  
pH  
VAPOR DENSITY  

AUTOIGNITION

 

NFPA RATINGS

  

REFRACTIVE INDEX

  
FLASH POINT  
STABILITY

Stable under ordinary conditions.

APPLICATIONS
Erythritol is a  a four-carbon sugar alcohol formed from erythrose by reduction of the carbonyl group; found in algae, lichens, grasses, and certain fungi. It is it is about twice as sweet as sucrose and used as a sweetener or food additive.  But it is not absorbed by the digestive system in the body.  sugar alcohol which has been approved for use in the US as a food additive and sweetener. Erythritol (more correctly meso-erythritol; meso- means inactive) is the optically inactive isomeric tetritol among three stereoisomers. The other two stereoisomeric tetritols are D- and L-threitol. The only existing three-carbon sugar alcohol (triitol) is glycerol. The four stereoisomeric pentitols are xylitol, ribitol, and D- or L-arabitol. Mercaptan esters of threitol, low molecular weight thiols, reduces disulfide bonds quantitatively and maintains monothiols in the reduced state, which provides the applications including protein processing, induction of genes, oligonucleotide synthesis. Cleland's reagent is the commonest reagent for maintaining -SH groups in reduced state. Mercaptan esters of threitol have been studied as anti-cancer agents by acting as alkylating agents to damage the cancer cell DNA.
SALES SPECIFICATION

APPEARANCE

 white fine crystalline powder
ASSAY

99.0% min

OPTICAL ROTATION

 -3.9° ~ -4.3° (c=3, water)
MELTING POINT 88 - 90 C
TRANSPORTATION
PACKING  
HAZARD CLASS  
UN NO.  
OTHER INFORMATION
Hazard Symbols: XI , Risk Phrases: 36/37/38, Safety Phrases: 24/25