1-chloropropene

Description

1-chloropropene · CAS 590-21-6 · C3H5Cl. UNII 0HXU981C24. Boiling Point: 35-36 °C; Flash Point: less than 21 °F (NFPA, 2010); Flash Point: Flash point > -6 °C.

Identification

CAS Registry Number	590-21-6
PubChem CID	11536
Molecular formula	C3H5Cl
IUPAC name	1-chloroprop-1-ene
UNII (FDA)	0HXU981C24

Computed Descriptors

Molecular Weight	76.52
XLogP3	1.7
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	0
Rotatable Bond Count	0
Exact Mass	76.0079779
Monoisotopic Mass	76.0079779
Topological Polar Surface Area	0
Heavy Atom Count	4
Formal Charge	0

Physical & Chemical Properties

Boiling Point	35-36 °C
Flash Point	less than 21 °F (NFPA, 2010)
Flash Point	Flash point > -6 °C
Density	0.9 (WATER= 1)
Vapor Pressure	507.0 [mmHg]
Vapor Pressure	507 mm Hg at 25 °C

Physical description & handling notes

• 1-chloropropylene is a colorless liquid with disagreeable odor.
• Colorless liquid with a disagreeable odor; [CAMEO]
• Liquid /cis and trans isomers/
• greater than 21 °F (greater than -6 °C) (Closed cup)
• Sol in ether, acetone, sol in benzene, chloroform /cis and trans isomers/
• Insol in water /cis and trans isomers/

GHS Hazard Classification

Reported hazard statements	H224 (17.6%), H225 (82.4%), H302 (100%), H315 (82.4%), H319 (82.4%), H336 (76.5%)

Documented Uses

• Used as a chemical intermediate for 1,3-Dichloropropene; Formed as byproduct in the production of allyl chloride; [HSDB]
• CHEM INT FOR 1,3-DICHLOROPROPENE (PROBABLY UNISOLATED)
• 1,2-Dichloropropane is stable at room temperature but is dehydrochlorinated by thermal or catalytic cracking to allyl chloride (107-05-1) and 1-chloro-1-propene (590-21-6).
• High temperature vapor-phase chlorination of propylene ...leading to allyl chloride...leads to small amounts of 2-chloropropene and 1-chloropropene.
• By treating propylene dichloride with alcoholic potassium hydroxide and fractionating from the simultaneously formed /2-chloro-1-propene/.
• (1977) 4.5X10+8 G MIN-PROBABLY FOR CAPTIVE USE

Synonyms

590-21-6; 1-Chloropropene; 1-Propene, 1-chloro-; 1-CHLORO-1-PROPENE; Propenyl chloride; DTXSID5020318; Propene, 1-chloro-; 0HXU981C24; NSC-6155; RefChem:431154; DTXCID40809751; 209-675-8; 1-Chloropropylene; 1-chloroprop-1-ene; Chloropropene; (Z)-Chloro-1-propene

Frequently Asked Questions

What are the CAS number and molecular formula of 1-chloropropene?

CAS 590-21-6; molecular formula C3H5Cl; molecular weight — g/mol.

What other names is 1-chloropropene known by?

590-21-6, 1-Chloropropene, 1-Propene, 1-chloro-, 1-CHLORO-1-PROPENE, Propenyl chloride, DTXSID5020318.

Is 1-chloropropene classified as hazardous?

Hazard statements reported: H224, H225, H302, H315, H319.

What are the key physical properties of 1-chloropropene?

Boiling Point: 35-36 °C; Flash Point: less than 21 °F (NFPA, 2010); Flash Point: Flash point > -6 °C; Density: 0.9 (WATER= 1).

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.