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L-Carnosine 99%

L-Carnosine 99%

CAS Number:305-84-0

Molecular Formula:C9H14N4O3

Molecular Weight:226.23

Assay:99%

Standard:USP

Country of Origin:China

Shelf Life:2 Years

Product description:

1)L-Carnosine (beta-alanyl-L-histidine)is a dipeptide of the amino acids beta-alanine and histidine. It is highly concentrated in muscle and brain tissues.2)L-Carnosine and carnitinewere discovered by Russian chemist V.Gulevich.Researchers in Britain,South Korea,Russiaand other countries have shown that carnosine has a number of antioxidant properties that may be beneficial. Carnosine has been proven toscavenge reactive oxygen species (ROS) as well as alpha-beta unsaturatedaldehydes formed from peroxidation of cell membrane fattyacids during oxidative stress. Carnosine is also a zwitterion, a neutral molecule with a positive and negative end.

L-Carnosine Specification:

ITEMS

STANDARDS

Appearance

White powder

Color

White to almost white

Smell

Odorless

Identification

Must comply

Loss on Drying

NMT 1.0%

Heavy Metals

NMT 10ppm

Arsenic

NMT 1ppm

Lead

NMT 3ppm

Cadmium

NMT 1ppm

Mercury

NMT 0.1ppm

Residue on Ignition

NMT 0.1%

Specific Rotation

+20.0°~ +22.0°

Melting Point

250°C ~ 265°C

PH(in 2% water)

L-Histidine

NMT 1.0%

β-Alanine

NMT 0.1%

Total Aerobes Counts

NMT 1000cfu/g

Yeast & Molds

NMT 10cfu/g



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