Hexamethylphosphoramide (CAS 680-31-9) — formula C6H18N3OP, molecular weight 179.20; category organic chemicals.
Hexamethylphosphoramide (CAS 680-31-9) is a chemical raw material in the organic chemicals category. Its molecular formula C6H18N3OP comprises 6 C, 18 H, 3 N, 1 O, 1 P atoms. Its molecular weight is about 179.20. Reported physicochemical data: melting point around 41 to 45 °F (NTP, 1992), boiling point around 451 °F at 760 mmHg (NTP, 1992), LogP about 0.3. As a sourcing and distribution partner we help locate and compare this item across domestic and cross-border channels, arranging samples and batch orders with full COA and compliance files.
| CAS Number | 680-31-9 |
|---|---|
| Molecular Formula | C6H18N3OP |
| Molecular Weight | 179.20 |
| Melting Point | 41 to 45 °F (NTP, 1992) |
| Boiling Point | 451 °F at 760 mmHg (NTP, 1992) |
| LogP | 0.3 |
| Applications | Hexamethylphosphoramide is no longer used in large quantities in the United States. Hexamethylphosphoramide was used in the past as a selective solvent for gases, a polymerization catalyst, a stabilizer against thermal degradation in polystyrene, and an additive to polyvinyl resins, solvent for aromatic polyamide fibers, also used as a catalyst |
| Category | Organic Chemicals |
Documented applications: Hexamethylphosphoramide is no longer used in large quantities in the United States. Hexamethylphosphoramide was used in the past as a selective solvent for gases, a polymerization catalyst, a stabilizer against thermal degradation in polystyrene, and an additive to polyvinyl resins, solvent for aromatic polyamide fibers, also used as a catalyst.
Hexamethylphosphoramide is a carbon-based organic compound with CAS registry number 680-31-9 and molecular formula C6H18N3OP (molecular weight 179.20), belonging to the organic chemicals segment of chemical raw materials.
CAS number: 680-31-9
Its molecular formula C6H18N3OP comprises 6 C, 18 H, 3 N, 1 O, 1 P atoms.
Also known as: Hexamethylphosphoramide · 六甲基磷酰胺
Category: organic chemicals
The CAS registry number of Hexamethylphosphoramide is 680-31-9.
Molecular formula C6H18N3OP, molecular weight 179.20.
It is also registered under: Hexamethylphosphoramide, 六甲基磷酰胺.
Recorded applications: Hexamethylphosphoramide is no longer used in large quantities in the United States. Hexamethylphosphoramide was used in the past as a selective solvent for gases, a polymerization catalyst, a stabilizer against thermal degradation in polystyrene, and an additive to polyvinyl resins, solvent for aromatic polyamide fibers, also used as a catalyst.
Category: Organic Chemicals.
Packaging is agreed per order, from lab-scale packs to bulk, and confirmed with each order rather than fixed on the page. A Certificate of Analysis (COA) ships with every batch and MSDS is available; where the end use carries a regulatory limit (food contact, pharmaceutical or cosmetic), state the standard at enquiry and the grade is set against it.
Independent reference data for Hexamethylphosphoramide (CAS 680-31-9), compiled from public chemistry databases.
| CAS Registry Number | 680-31-9 |
|---|---|
| PubChem CID | 12679 |
| Molecular formula | C6H18N3OP |
| IUPAC name | N-[bis(dimethylamino)phosphoryl]-N-methylmethanamine |
| UNII (FDA) | M42TU5843Z |
| Molecular Weight | 179.20 |
|---|---|
| XLogP3 | 0.3 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 4 |
| Rotatable Bond Count | 3 |
| Exact Mass | 179.11874920 |
| Monoisotopic Mass | 179.11874920 |
| Topological Polar Surface Area | 26.8 |
| Heavy Atom Count | 11 |
| Boiling Point | 451 °F at 760 mmHg (NTP, 1992) |
|---|---|
| Boiling Point | 233 °C @ 760 MM HG |
| Boiling Point | 232 °C |
| Boiling Point | 451 °F |
| Boiling Point | 232.5 °C @760 [mm Hg] |
| Melting Point | 41 to 45 °F (NTP, 1992) |
| Melting Point | FP: 5-7 °C |
| Melting Point | 7.2 °C |
| Melting Point | 43 °F |
| Flash Point | 222 °F (NTP, 1992) |
HEXAMETHYLPHOSPHORAMIDE; 680-31-9; HMPA; Hexamethylphosphoric triamide; Hexametapol; Hempa; HMPTA; Hexamethylphosphoric acid triamide; Phosphoric hexamethyltriamide; Hexamethylphosphorotriamide; Eastman Inhibitor HPT; Phosphoric triamide, hexamethyl-; Hexamethylphosphotriamide; Tris(dimethylamino)phosphine oxide; Hexamethylorthophosphoric triamide; Phosphoric acid hexamethyltriamide
| Reported hazard statements | H340, H350, H303, H313, H315, H351, H361, H371 |
|---|
H340: May cause genetic defects [Danger Germ cell mutagenicity]
H350: May cause cancer [Danger Carcinogenicity]
Hexamethylphosphoramide · CAS 680-31-9 · C6H18N3OP. UNII M42TU5843Z. Boiling Point: 451 °F at 760 mmHg (NTP, 1992); Boiling Point: 233 °C @ 760 MM HG; Boiling Point: 232 °C.
Source: PubChem / Wikidata; the batch COA governs where values differ.
Supplier: Jinan Shenghe Chemical Co., Ltd.
中文页面: 六甲基磷酰胺