L-CARNOSINE

PRODUCT IDENTIFICATION
CAS NO. 305-84-0; 7683-28-5

CARNOSINE

EINECS NO. 206-169-9
FORMULA C9H14N4O3
MOL WT. 226.23

H.S. CODE

  

TOXICITY

  
SYNONYMS Ignotine; Karnozin; Karnozzn; L-Carnosine; H-β-Ala-His-OH;
2-(3-Aminopropanoylamino)-3-(3H-imidazol-4-yl)propanoic acid; N-beta-Alanyl-L-histidine; beta-Alanyl-L-histidine;
DERIVATION

 

CLASSIFICATION

  

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE white to off-white powder
MELTING POINT 253 - 260 C
BOILING POINT  
SPECIFIC GRAVITY  
SOLUBILITY IN WATER  
pH  
VAPOR DENSITY

 

REFRACTIVE INDEX

  

NFPA RATINGS

  

AUTOIGNITION

 

FLASH POINT

 

STABILITY Stable under normal conditions.

GENERAL DESCRIPTION & APPLICATIONS
Peptides are the members of the compounds composed of two or more amino acids joined by the linking between one amino acid residue and the carboxyl group of the next amino acid by hydrolysis into linear, branched or cyclical structures. The link is an amide bond, and is sometimes referred to as a peptide bond. Peptides are playing a promising role in the molecular biology and in the creating medicines. Peptides are used in the study of protein structure and function, antibodies for the inhibition of cancer, for the study of protein structure and function research. Peptides are also used as instrumental in mass spectrometry. Biological activities of peptide are applicable in the fields of nutrition, medicine, and cosmetics.
  • Dipeptide: a molecule consisting of two amino acids
  • Tripeptide a molecule consisting of three amino acids
  • Octapeptide: a molecule consisting of eight amino acids
  • Oligopeptide: a polypeptide composed of approximately 2-12 amino acids length (or 3 to 40 component amino acids)
  • Polypeptide: a single molecule composed of approximately 13 or more amino acids.
  • Protein: a linear polypeptides that are normally synthesized on ribosomes.

Carnosine is a dipeptide composed of ß-alanine and L-histidine. It is found in the brain, and in skeletal muscle and particularly in the olfactory pathways in which copper concentration is high. Carnosine may play a role as a neurotransmitter. It has a imidazole moiety that confers anti-oxidant activity. Carnosine performs the function of anti-glycation, pH buffering and metal chelation (particularly Cu2+). Carnosine compounds are used as anti-ulcer agent. Zinc L-carnosine (polaprezinc) stimulates bone growth and acts as an anti-ulcer agent.

Carnosine related molecules

Product

CAS RN
Carnosine 305-84-0
Anserine 584-85-0
Homocarnosine 3650-73-5
L-Anserine nitrate 10030-52-1
Homocarnosine sulfate 19841-48-6
N-Acetylcarnosine 56353-15-2
Carcinine 56897-53-1
Polaprezinc 107667-60-7

SALES SPECIFICATION

APPEARANCE

 white to off-white powder
IDENTIFICATION

Conforms (IR)

PURITY

99.0% min
LOSS ON DRYING

1.0% max
HYDRAZINE CONTENT

Nil
METHYL ALCOHOL

0.2% max
HEAVY METALS

10ppm max
SPECIFIC ROTATION +22° ± 2° (c=1 in H2O)
MICROBIAL Total plate count: not more than 1000/g
Yeast and mold: not more than 100/g
E.coli: neagative
Salmonella: neagative
TRANSPORTATION
PACKING
 
HAZARD CLASS  
UN NO.  
PRICES
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