Specialty Additives Available — Bulk Only

Melamine Cyanurate

MCA
CAS 37640-57-6 · Formula C6H9N9O3 · MW 255.20 g/mol
Safety Data Sheet
CAS Number
37640-57-6
Formula
C6H9N9O3
Molecular Weight
255.20 g/mol
Material Family
Specialty Additives
At a Glance
Material Family
Specialty Additives
Record Type
Salt
Primary Role
Flame Retardancy · Lubrication
Functional Roles
Applications & Use Cases
  • Halogen-free flame retardant for glass-filled and unfilled nylon 6 and nylon 66, where it promotes char formation and dripping suppression to help reach UL 94 V-0/V-2 ratings in electrical connectors, switches, and housings.
  • Smoke- and corrosion-reducing alternative to halogenated flame retardants in thermoplastic compounds for electrical and electronic (E&E) components.
  • Anti-dripping and intumescent co-additive in polyolefin and intumescent coating systems, contributing nitrogen-source gas evolution during combustion.
  • Solid lubricant and friction-reducing additive in engineering-plastic compounds and certain metalworking/lubricant formulations owing to its layered crystal structure.
  • Flame-retardant filler in polyurethane foams and thermoset systems requiring a non-halogen, low-toxicity additive.
Physical Properties
appearance
white crystalline powder
molecular_weight
255.20 g/mol
decomposition_temperature
>320 C (sublimes/decomposes)
bulk_density
0.2-0.5 g/cm3 (typical, grade dependent)
water_solubility
very low (~0.01 g/100 mL, sparingly soluble)
physical_form
fine powder
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.

Chemical Identity
CAS Number
37640-57-6
Molecular Formula
C6H9N9O3
Molecular Weight
255.20 g/mol
IUPAC Name
1,3,5-triazinane-2,4,6-trione;1,3,5-triazine-2,4,6-triamine
PubChem CID
InChI Key
ZQKXQUJXLSSJCH-UHFFFAOYSA-N
Synonyms & Trade Names
Melamine isocyanurate Melamine cyanuric acid 1,3,5-Triazine-2,4,6(1H,3H,5H)-trione compound with 1,3,5-triazine-2,4,6-triamine (1:1) Melamine-cyanuric acid adduct 2,4,6-Triamino-s-triazine cyanurate Melaminecyanurate
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.