CARNOSINE- ▸ Dietary supplement: Dipeptide ingredient for supplement formulations.
- ▸ Cosmetic ingredient: Used in personal-care formulations.
- ▸ Antioxidant ingredient: Water-soluble free-radical-scavenging compound.
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 →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.
Regulatory & registration requirements
- TSCA (US):
- REACH (EU):
- EC number: 206-169-9
Source: EPA TSCA Inventory (July 2025 release) · ECHA CHEM — retrieved 2026-07-12
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.
What is the REACH and TSCA regulatory status of L-Carnosine (Carnosine)?
L-Carnosine (Carnosine) (CAS 305-84-0) is subject to U.S. TSCA Inventory requirements; supplying it into the EU requires valid REACH registration ((EC) No 1907/2006). RawSource cannot verify a third-party supplier's registrations — buyers should require documented TSCA and REACH compliance for their jurisdiction and volume (EC 206-169-9).