Specialty Additives Available — Bulk Only

Ectoin (Ectoine)

CAS 96702-03-3 · Formula C6H10N2O2 · MW 142.16 g/mol

A microbial compatible solute (extremolyte) used as a stabilizing active in cosmetic and biotechnology formulations. It is used as a skin-conditioning active in cosmetic formulations and as a stabilizer for proteins and other biomolecules.

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HS Code
2933.59
At a Glance
Material Family
Specialty Additives
Record Type
Pure compound
Primary Role
Conditioning · Moisture Control
Functional Roles
ECTOIN
SKIN CONDITIONING
Industries Served
Applications & Use Cases
  • Cosmetic active: Skin-conditioning ingredient in personal-care formulations.
  • Biomolecule stabilizer: Compatible solute that stabilizes proteins and cells.
  • Osmolyte: Cell-protectant osmotic active in formulation.
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.

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HS / Tariff Classification
Harmonized System (HS) Code — 6-digit international heading
2933 . 59
Chapter 29
Organic chemicals
Heading 29.33
Internationally harmonized (WCO HS)
Subheading 2933.59
6-digit international code — national tariff line adds further digits
Chemical Identity
CAS Number
96702-03-3
Molecular Formula
C6H10N2O2
Molecular Weight
142.16 g/mol
IUPAC Name
(6S)-2-methyl-1,4,5,6-tetrahydropyrimidine-6-carboxylic acid
INCI Name
ECTOIN
PubChem CID
InChI Key
WQXNXVUDBPYKBA-YFKPBYRVSA-N
Synonyms & Trade Names
ectoine ectoin (4S)-2-methyl-1,4,5,6-tetrahydropyrimidine-4-carboxylic acid (6S)-2-methyl-1,4,5,6-tetrahydropyrimidine-6-carboxylic acid (4S)-3,4,5,6-Tetrahydro-2-methyl-4-pyrimidinecarboxylic acid (4S)-2-methyl-1,4,5,6-tetrahydropyrimidine-4-carboxylate (6S)-2-methyl-1,4,5,6-tetrahydropyrimidin-3-ium-6-carboxylate 4-Pyrimidinecarboxylic acid, 1,4,5,6-tetrahydro-2-methyl-, (+)- 1,4,5,6-Tetrahydro-2-methyl-4-pyrimidinecarboxylic acid 2-methyl-3,4,5,6-tetrahydropyrimidine-4-carboxylic acid L-Ectoine (S)-2-Methyl-3,4,5,6-tetrahydropyrimidine-4-carboxylic acid
Full Description

Ectoin (CAS 96702-03-3) is a cyclic amino-acid derivative and naturally occurring compatible solute (osmolyte) produced by extremophilic microorganisms. It is used as a skin-conditioning active in cosmetic formulations and as a stabilizer for proteins and other biomolecules.

Frequently Asked Questions

What is ectoin?

Ectoin (CAS 96702-03-3) is a cyclic amino-acid derivative and naturally occurring compatible solute (osmolyte) produced by extremophilic microorganisms. Molecular formula is C6H10N2O2. It is supplied as a raw ingredient for cosmetic and biotechnology formulations.

What is ectoin used for in formulations?

Ectoin is used as a skin-conditioning active in cosmetic and personal-care formulations and as a compatible-solute stabilizer for proteins, cells, and other biomolecules. As an osmolyte it functions as a cell-protectant osmotic active. RawSource supplies the ingredient for formulators to incorporate at their specified use levels.

What grade and identity does RawSource supply?

We supply ectoin referenced to CAS 96702-03-3 with a lot-specific Certificate of Analysis confirming identity and purity. Cite the CAS number on RFQs to ensure correct material. Cosmetic-use suitability for your jurisdiction is the formulator's responsibility per the supplied CoA and SDS.

How should ectoin be stored and handled?

Handling, storage, and compatibility information is detailed on the SDS provided with each lot; ectoin is a solid raw ingredient typically handled under standard dry-chemical practices. Request the current SDS before specifying. Lot-specific data governs.

How is ectoin supplied in bulk?

RawSource supplies ectoin to cosmetic and biotech manufacturers in kilogram and larger quantities, with packaging and MOQ confirmed at quotation. It classifies under HS 2933.59. Submit a bulk RFQ with your required volume and purity specification.

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.