CAS 24993-04-2 Nylon 6/66 (HCID 168236)

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Basic information

CAS: 24993-04-2
Standard SMILES: NCCCCCCN.O=C(O)CCCCC(=O)O.O=C1CCCCCN1
InChIKey: TZYHIGCKINZLPD-UHFFFAOYSA-N
Molecular formula: C18H37N3O5
Average molar mass: 375.5 g/mol

Names & identifiers

Preferred name: Nylon 6/66
IUPAC: azepan-2-one;hexane-1,6-diamine;hexanedioic acid
English name: NYLON 6/66
Molecular formula: C18H37N3O5
Molecular weight: 375.50348

Names & synonyms

Nylon 6/66RefChem:854967607-478-5azepan-2-one;hexane-1,6-diamine;hexanedioic acidNylon 6:66Nylon 6/66, pelletsSCHEMBL262118Polyamide 6/66nylon 6-nylon 66 copolyamideNYLON 6/66 ISO 9001：2015 REACHnylon6/66(zytel109lnylonresin)POLY(HEXAMETHYLENE ADIPAMIDE-CO-CAPROLACTAM)

Show more names

azepan-2-one,hexane-1,6-diamine,hexanedioicaciCaparamide-Hexamethyleneadipamide polycondensateazepan-2-one,hexane-1,6-diamine,hexanedioic acidNylon 6/66,Poly(hexamethylene adipamide-co-caprolactam)

Database identifiers

CAS: 24993-04-2
PubChem CID: 168236

Properties

Computed structural properties

Topological polar surface area: 156 Å²
Hydrogen bond donors: 5
Hydrogen bond acceptors: 7
Rotatable bonds: 10
Heavy atoms: 26
Formal charge: 0
Complexity: 236

Experimental & physicochemical properties

Food Contact SubstancesFCS -> FDA Inventory of Food Contact Substances Listed in 21 CFR

Physicochemical properties

Melting point: 250 · 250-260 °C(lit.)
Density: 1.3 g/mL · 1.3 g/mL at 25 °C(lit.)
solubility: strong proton donor solvents, acetic acid and phenols: soluble
form: pellets
Indirect Additives used in Food Contact Substances: 6 · NYLON 6/66
FDA 21 CFR: 177.12 · 177.1200; 177.1395; 177.1500;177.2470
EPA Substance Registry System: -2 H-azepin-2-one · Hexanedioic acid, polymer with hexahydro-2H-azepin-2-one and 1,6-hexanediamine (24993-04-2)
WGK Germany: 3 · 3
TSCA: TSCA listed

Safety & regulation

Safety data

wgk: 3
tsca: TSCA listed

Chemistry & industry

Applications

UsesGeneral purpose thermoplastic polyamide.Fibers for textiles, brushes and sutures cable sheathing and tubing and bearings, cams, gears and casings for tools and appliances.