L-carnosine

Modify Date: 2026-06-29 17:57:33

L-carnosine structure	Common Name	L-carnosine
	CAS Number	305-84-0	Molecular Weight	226.232
	Density	1.4±0.1 g/cm3	Boiling Point	656.2±55.0 °C at 760 mmHg
	Molecular Formula	C₉H₁₄N₄O₃	Melting Point	253 °C (dec.)(lit.)
	MSDS	Chinese USA	Flash Point	350.7±31.5 °C

Use of L-carnosine

L-Carnosine is a dipeptide of the amino acids beta-alanine and histidine and has the potential to suppress many of the biochemical changes that accompany aging.

Name	carnosine
Synonym	More Synonyms

Description	L-Carnosine is a dipeptide of the amino acids beta-alanine and histidine and has the potential to suppress many of the biochemical changes that accompany aging.
Related Catalog	Research Areas >> Metabolic Disease Natural Products >> Others
Target	Human Endogenous Metabolite
In Vitro	L-Carnosine is a dipeptide of the amino acids beta-alanine and histidine and has the potential to suppress many of the biochemical changes that accompany aging[1]. Carnosine also exhibits some antioxidant effects. The antioxidant mechanism of carnosine is attributed to its chelating effect against metal ions, superoxide dismutase (SOD)-like activity, and ROS and free radicals scavenging ability[2].
References	[1]. Hipkiss AR, et al. Would carnosine or a carnivorous diet help suppress aging and associated pathologies? Ann N Y Acad Sci. 2006 May;1067:369-74. [2]. Guney Y, et al. Carnosine may reduce lung injury caused by radiation therapy. Med Hypotheses. 2006;66(5):957-9.

Density	1.4±0.1 g/cm3
Boiling Point	656.2±55.0 °C at 760 mmHg
Melting Point	253 °C (dec.)(lit.)
Molecular Formula	C₉H₁₄N₄O₃
Molecular Weight	226.232
Flash Point	350.7±31.5 °C
Exact Mass	226.106583
PSA	121.10000
LogP	-2.17
Vapour Pressure	0.0±2.1 mmHg at 25°C
Index of Refraction	1.591
InChIKey	CQOVPNPJLQNMDC-ZETCQYMHSA-N
SMILES	NCCC(=O)NC(Cc1cnc[nH]1)C(=O)O

L-carnosine MSDS(Chinese)

CHEMICAL IDENTIFICATION

RTECS NUMBER :: MS3080000

CHEMICAL NAME :: L-Histidine, N-beta-alanyl-

CAS REGISTRY NUMBER :: 305-84-0

BEILSTEIN REFERENCE NO. :: 0087671

LAST UPDATED :: 199701

DATA ITEMS CITED :: 4

MOLECULAR FORMULA :: C9-H14-N4-O3

MOLECULAR WEIGHT :: 226.27

WISWESSER LINE NOTATION :: T5M CNJ D1YVQMV2Z

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: >14930 mg/kg

TOXIC EFFECTS :: Behavioral - somnolence (general depressed activity) Behavioral - muscle contraction or spasticity Lungs, Thorax, or Respiration - respiratory depression

REFERENCE :: USXXAM United States Patent Document. (U.S. Patent Office, Box 9, Washington, DC 20231) Volume(issue)/page/year: #4446149

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 9087 mg/kg

TOXIC EFFECTS :: Behavioral - somnolence (general depressed activity) Behavioral - muscle contraction or spasticity Lungs, Thorax, or Respiration - respiratory depression

REFERENCE :: USXXAM United States Patent Document. (U.S. Patent Office, Box 9, Washington, DC 20231) Volume(issue)/page/year: #4446149 ** REPRODUCTIVE DATA **

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Intraperitoneal

DOSE :: 21 mg/kg

SEX/DURATION :: female 8-14 day(s) after conception

TOXIC EFFECTS :: Reproductive - Fertility - post-implantation mortality (e.g. dead and/or resorbed implants per total number of implants) Reproductive - Fertility - litter size (e.g. # fetuses per litter; measured before birth) Reproductive - Effects on Embryo or Fetus - fetal death

REFERENCE :: OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180, Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 8,1219,1974

Personal Protective Equipment	Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter
Hazard Codes	Xn: Harmful;
Risk Phrases	R20/21/22
Safety Phrases	S24/25
RIDADR	NONH for all modes of transport
WGK Germany	2
RTECS	MS3080000
HS Code	2933290090

Precursor 7
CAS#:34653-21-9 1,3-thiazinane-... CAS#:71-00-1 L-Histidine CAS#:357409-05-3 (S)-2-(cyanoace... CAS#:378784-00-0 rhodium
CAS#:7440-44-0 Carbon CAS#:7389-97-1 (2S)-2-[3-(1,3-... CAS#:107-95-9 beta-Alanine
DownStream 2
CAS#:71-00-1 L-Histidine CAS#:107-95-9 beta-Alanine

HS Code	2933290090
Summary	2933290090. other compounds containing an unfused imidazole ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

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(2S)-2-(3-aminopropanamido)-3-(1H-imidazol-5-yl)propanoic acid

N-b-Alanyl-L-histidine

EINECS 206-169-9

β-Alanyl-L-histidine

N-(b-Alanyl)-L-histidine

N-β-Alanyl-L-histidin

beta-Alanyl-L-histidine

ignotine

n-2-m

L-IGNOTINE

carnosine

karnozzn

Carnosin

L-Carnosine

MFCD00005207

N-β-Alanyl-L-histidine

(E)-N-(3-Amino-1-hydroxypropylidene)-L-histidine

Karnozin

H-β-Ala-His-OH

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China
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Zhongshan Xingrui Chemical Co. , Ltd.
China
Product Name: L-carnosine
Price: ￥Inquiry/25kg
Purity: 99.0%
Delivery: Inquiry
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L-carnosine

Use of L-carnosine

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L-carnosine Biological Activity

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MSDS

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HEALTH HAZARD DATA

ACUTE TOXICITY DATA

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