Amines & Amides Available — Bulk Only

L-Carnosine (Carnosine)

CAS 305-84-0 · Formula C9H14N4O3 · MW 226.23 g/mol

An imidazole-bearing beta-alanyl-histidine dipeptide offered for antioxidant-ingredient and supplement use. It is supplied as an ingredient for dietary supplement and cosmetic formulations.

Request SDS
HS Code
2933.29
At a Glance
Material Family
Amines & Amides
Record Type
Pure compound
Primary Role
Conditioning · Chelation / Sequestration
Functional Roles
CARNOSINE
SKIN CONDITIONING
Industries Served
Applications & Use Cases
  • Dietary supplement: Dipeptide ingredient for supplement formulations.
  • Cosmetic ingredient: Used in personal-care formulations.
  • Antioxidant ingredient: Water-soluble free-radical-scavenging compound.
Physical Properties
Melting Point
253
Solubility
384 mg/mL
Safety & Handling
Full SDS available on request

A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.

Request SDS →
HS / Tariff Classification
Harmonized System (HS) Code — 6-digit international heading
2933 . 29
Chapter 29
Organic chemicals
Heading 29.33
Internationally harmonized (WCO HS)
Subheading 2933.29
6-digit international code — national tariff line adds further digits
Chemical Identity
CAS Number
305-84-0
Molecular Formula
C9H14N4O3
Molecular Weight
226.23 g/mol
IUPAC Name
(2S)-2-(3-aminopropanoylamino)-3-(1H-imidazol-5-yl)propanoic acid
INCI Name
CARNOSINE
PubChem CID
InChI Key
CQOVPNPJLQNMDC-ZETCQYMHSA-N
Synonyms & Trade Names
L-Carnosine Carnosine beta-Alanyl-L-histidine Ignotine Karnozin Karnozzn L-Histidine, beta-alanyl- (2S)-2-(3-aminopropanamido)-3-(1H-imidazol-4-yl)propanoic acid Nalpha-(beta-alanyl)-L-histidine N-beta-alanyl-L-histidine (2S)-2-(3-aminopropanoylamino)-3-(1H-imidazol-5-yl)propanoic acid L-HISTIDINE, N-beta-ALANYL- (2S)-2-(3-aminopropanamido)-3-(1H-imidazol-5-yl)propanoic acid L Carnosine beta Alanylhistidine
Full Description

L-Carnosine (CAS 305-84-0) is a naturally occurring dipeptide of beta-alanine and L-histidine (C9H14N4O3) and a water-soluble antioxidant compound. It is supplied as an ingredient for dietary supplement and cosmetic formulations.

Frequently Asked Questions

What is L-Carnosine used for?

L-Carnosine (CAS 305-84-0) is a naturally occurring dipeptide of beta-alanine and L-histidine (C9H14N4O3) and a water-soluble antioxidant compound. It is supplied as an ingredient for dietary supplement and cosmetic formulations. RawSource supplies it as a bulk raw material to formulators.

What is L-Carnosine made of?

It is a dipeptide formed from two amino acids, beta-alanine and L-histidine, giving the molecular formula C9H14N4O3, CAS 305-84-0. It is supplied as a purified raw material with identity confirmed on the CoA.

What is the difference between L-carnosine and L-carnitine?

They are unrelated compounds: L-carnosine (CAS 305-84-0, C9H14N4O3) is a beta-alanine/L-histidine dipeptide, while L-carnitine (CAS 541-15-1, C7H15NO3) is a quaternary ammonium compound. They are sourced and specified separately; we can quote either against your spec.

How is L-Carnosine sold in bulk?

It is supplied as a crystalline/powder raw material in industrial packaging sized for supplement and cosmetic formulation use. Contact us for bulk pack sizes, minimum order quantity, available grade, lead time, and a current quote. CoA and SDS accompany every shipment.

What is the CAS number and HS code for L-Carnosine?

L-Carnosine is CAS 305-84-0 with molecular formula C9H14N4O3. As a compound containing an unfused imidazole ring it is classified under HS subheading 2933.29. Full identity and specification data are provided on the CoA.

Disclaimer. Information on this page — including properties, identifiers, hazard, transport (DOT/UN) and tariff (HS) classifications, and applications — is provided for general reference and is compiled from authoritative public sources (e.g. PubChem/ECHA, 49 CFR 172.101, the Harmonized Tariff Schedule). Values are typical and are not a guaranteed specification; the Certificate of Analysis (CoA) for the lot purchased governs. Products are sold for industrial and professional use only. Nothing here is a medical, health, or efficacy claim or advice. Always consult the current Safety Data Sheet (SDS) before handling, storage, transport or disposal, and confirm regulatory status, classification and suitability for your application and jurisdiction. Hazard, transport and tariff classifications must be verified for your specific shipment. RawSource makes no warranty, express or implied, and assumes no liability for use of this information. Trademarks. Third-party trademarks and brand names are the property of their respective owners; any reference is nominative — used only to identify a comparable product — and does not imply affiliation with, sponsorship by, or endorsement by the trademark owner.