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 carnitine were 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 to
scavenge reactive oxygen species (ROS) as well as alpha-beta unsaturatedaldehydes formed from peroxidation of cell membrane fatty
acids during oxidative stress. Carnosine is also a zwitterion, a neutral molecule with a positive and negative end.
L-Carnosine Specification:
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ITEMS
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STANDARDS
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Appearance
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White powder
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Color
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White to almost white
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Smell
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Odorless
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Identification
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Must comply
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Loss on Drying
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NMT 1.0%
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Heavy Metals
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NMT 10ppm
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Arsenic
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NMT 1ppm
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Lead
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NMT 3ppm
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Cadmium
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NMT 1ppm
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Mercury
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NMT 0.1ppm
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Residue on Ignition
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NMT 0.1%
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Specific Rotation
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+20.0°~ +22.0°
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Melting Point
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250°C ~ 265°C
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PH(in 2% water)
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7.5~8.5
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L-Histidine
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NMT 1.0%
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β-Alanine
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NMT 0.1%
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Total Aerobes Counts
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NMT 1000cfu/g
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Yeast & Molds
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NMT 10cfu/g
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