4,4-二甲基恶唑烷

Description

4,4-dimethyloxazolidine · CAS 51200-87-4 · C5H11NO. UNII 96J42P99ZA. Boiling Point: 100.9 °C; Flash Point: 49 °C (120 °F) - closed cup; Density: Bulk density = 0.99 g/mL.

Identification

CAS Registry Number	51200-87-4
PubChem CID	62010
Molecular formula	C5H11NO
IUPAC name	4,4-dimethyl-1,3-oxazolidine
UNII (FDA)	96J42P99ZA

Computed Descriptors

Molecular Weight	101.15
XLogP3	0.1
Hydrogen Bond Donor Count	1
Hydrogen Bond Acceptor Count	2
Rotatable Bond Count	0
Exact Mass	101.084063974
Monoisotopic Mass	101.084063974
Topological Polar Surface Area	21.3
Heavy Atom Count	7
Formal Charge	0

Physical & Chemical Properties

Boiling Point	100.9 °C
Flash Point	49 °C (120 °F) - closed cup
Density	Bulk density = 0.99 g/mL
Vapor Pressure	22.3 [mmHg]
Dissociation Constants	pKa = 9.35
Other Experimental Properties	log Kow = 0.73

Physical description & handling notes

• CBI; Liquid
• Colorless to slightly yellow liquid with a fishy odor; End-use formulations are soluble concentrate and liquid; [Reference #1] Pungent odor; [Dow MSDS]
• Colorless to slightly yellow liquid
• Miscible with water in all proportions
• Miscible with methanol, ethanol, propanol and acetone
• Stable under recommended storage conditions.

Regulatory Status

Regulatory & Food Contact	CIR / INCI: Preservative
GHS notification summary	2% (29 / 1462)

GHS Hazard Classification

GHS notification summary	2% (29 / 1462)
Reported hazard statements	H226 (96%), H302, H332 (37.3%), H312 (17.6%), H315 (92.2%), H318 (97.5%), H317, H319

Documented Uses

• Used as antimicrobial for control of slime forming bacteria and fungi in oil recovery drilling muds and secondary injection water, packer fluids, metalworking cutting fluids, adhesives, resin emulsions, latex paints, wet-end additives, and industrial processing chemicals; [Reference #1]
• Metal Machining [Category: Heat or Machine]
• Petroleum Production and Refining [Category: Industry]
• Painting (Pigments, Binders, and Biocides) [Category: Paint]
• Working with Glues and Adhesives [Category: Other]
• Using Disinfectants or Biocides [Category: Clean]

Synonyms

4,4-DIMETHYLOXAZOLIDINE; 51200-87-4; 4,4-Dimethyl-1,3-oxazolidine; Oxazolidine A; Dimethyl oxazolidine; Oxadine A; Oxazolidine, 4,4-dimethyl-; Oxaban A; Zoldine ZA; 4,4-dimethyl oxazolidine; Nuosept 101; Oxaban-A; Caswell No. 374AB; DTXSID0032314; Truptan OX-I; Nuosept 166

Frequently Asked Questions

What are the CAS number and molecular formula of 4,4-dimethyloxazolidine?

CAS 51200-87-4; molecular formula C5H11NO; molecular weight — g/mol.

What other names is 4,4-dimethyloxazolidine known by?

4,4-DIMETHYLOXAZOLIDINE, 51200-87-4, 4,4-Dimethyl-1,3-oxazolidine, Oxazolidine A, Dimethyl oxazolidine, Oxadine A.

What is the regulatory status of 4,4-dimethyloxazolidine?

Documented regulatory listings: CIR / INCI: Preservative.

Is 4,4-dimethyloxazolidine classified as hazardous?

2% of GHS notifications report no hazard classification (29 of 1462).

What are the key physical properties of 4,4-dimethyloxazolidine?

Boiling Point: 100.9 °C; Flash Point: 49 °C (120 °F) - closed cup; Density: Bulk density = 0.99 g/mL; Vapor Pressure: 22.3 [mmHg].

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.