Hexamethylphosphoramide

Name: Hexamethylphosphoramide
Brand: Jinan Shenghe Chemical Co., Ltd.

CAS 680-31-9C6H18N3OPMW 179.20

Hexamethylphosphoramide (CAS No. 680-31-9) is supplied by Jinan Shenghe Chemical Co., Ltd. with a typical purity of 按批次COA提供(不公开发布). Main applications include Organic Chemicals. Bulk quantities are available with COA; purity and packaging are subject to batch COA and order confirmation.

Specifications

CAS Number680-31-9

Molecular FormulaC6H18N3OP

Molecular Weight179.20

Melting Point41 to 45 °F (NTP, 1992)

Boiling Point451 °F at 760 mmHg (NTP, 1992)

LogP0.3

Purity按批次COA提供(不公开发布)

Packaging按订单/批次确认(不公开发布)

ApplicationsOrganic Chemicals

CategoryOrganic Chemicals

Where it is used

Organic Chemicals

Packaging & Supply

Packaging按订单/批次确认(不公开发布)

Purity按批次COA提供(不公开发布)

StorageSealed, cool and dry place

Lead TimeIn stock / per order

Documents & Support

COA provided with every batch; MSDS and technical documents available on request. Email us with product name and CAS number for a quote within one business day.

Frequently Asked Questions

What is the CAS number of Hexamethylphosphoramide?

The CAS number of Hexamethylphosphoramide is 680-31-9.

What purity and packaging are available?

Typical purity is 按批次COA提供(不公开发布), supplied in 按订单/批次确认(不公开发布), with COA provided.

What are the applications of Hexamethylphosphoramide?

Main applications include Organic Chemicals.

How do I buy Hexamethylphosphoramide or get a quote?

Email info@591daili.com or reach us on WhatsApp with the product name, CAS number and required quantity; quotes within one business day. Supplier: Jinan Shenghe Chemical Co., Ltd..

PubChem Public Data

Description

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.

Identification

CAS Registry Number	680-31-9
PubChem CID	12679
Molecular formula	C6H18N3OP
IUPAC name	N-[bis(dimethylamino)phosphoryl]-N-methylmethanamine
UNII (FDA)	M42TU5843Z

Computed Descriptors

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
Formal Charge	0

Physical & Chemical Properties

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)

Physical description & handling notes

Hexamethylphosphoramide is a clear colorless to light amber liquid with a spicy odor. (NTP, 1992)
Clear, colorless liquid with an aromatic or mild, amine-like odor. [Note: A solid below 43 degrees F.]; [NIOSH]
COLOURLESS MOBILE LIQUID.
Clear, colorless to light amber liquid with an aromatic or mild, amine-like odor.
COLORLESS, MOBILE LIQUID
Clear, colorless liquid [Note: A solid below 43 degrees F].

GHS Hazard Classification

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]

Documented Uses

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.
Used as a solvent for aromatic polyamide fibers; also used as a catalyst, stabilizer, and additive for polymers and resins; [ACGIH]
Textiles (Fiber & Fabric Manufacturing) [Category: Industry]
Plastic Composites Manufacturing [Category: Industry]
PROCESSING SOLVENT FOR AROMATIC POLYAMIDE FIBER
DE-ICING ADDITIVE FOR JET FUELS; /EXPERIMENTAL/ CHEMOSTERILANT FOR A NUMBER OF INSECT PESTS; AS A CHEMICAL MUTAGEN

Synonyms

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

Frequently Asked Questions

What are the CAS number and molecular formula of Hexamethylphosphoramide?

CAS 680-31-9; molecular formula C6H18N3OP; molecular weight — g/mol.

What other names is Hexamethylphosphoramide known by?

HEXAMETHYLPHOSPHORAMIDE, 680-31-9, HMPA, Hexamethylphosphoric triamide, Hexametapol, Hempa.

Is Hexamethylphosphoramide classified as hazardous?

Hazard statements reported: H340, H350, H303, H313, H315.

What are the key physical properties of Hexamethylphosphoramide?

Boiling Point: 451 °F at 760 mmHg (NTP, 1992); Boiling Point: 233 °C @ 760 MM HG; Boiling Point: 232 °C; Boiling Point: 451 °F.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.

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