1,3-Propane sultone

Description

1,3-Propane sultone · CAS 1120-71-4 · C3H6O3S. UNII L6NTK7VJX9. Odor: Foul odor above 31.11 °C.; Boiling Point: 180 °C at 0.039 atm.; Melting Point: 86 °F (NIOSH, 2024).

Identification

CAS Registry Number	1120-71-4
PubChem CID	14264
Molecular formula	C3H6O3S
IUPAC name	oxathiolane 2,2-dioxide
UNII (FDA)	L6NTK7VJX9

Computed Descriptors

Molecular Weight	122.15
XLogP3	-0.2
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	3
Rotatable Bond Count	0
Exact Mass	122.00376522
Monoisotopic Mass	122.00376522
Topological Polar Surface Area	51.8
Heavy Atom Count	7
Formal Charge	0

Physical & Chemical Properties

Odor	Foul odor above 31.11 °C.
Boiling Point	180 °C at 0.039 atm.
Melting Point	86 °F (NIOSH, 2024)
Melting Point	31 °C
Melting Point	86 °F
Flash Point	>110 °C
Flash Point	>235 °F
Solubility	10 % (NIOSH, 2024)
Solubility	SOL IN WATER (100 G/L)
Solubility	10%

Physical description & handling notes

• Propane sultone appears as white crystalline solid or a colorless liquid (above 86 °F). Releases a foul odor when melting. (NIOSH, 2024)
• Liquid
• White, crystalline solid or a colorless liquid (above 86 degrees F). [Note: Releases a foul odor as it melts.]; [NIOSH]
• WHITE CRYSTALS OR COLOURLESS LIQUID WITH CHARACTERISTIC ODOUR.
• White, crystalline solid or a colorless liquid (above 86 °F). [Note: Releases a foul odor as it melts.]
• COLORLESS LIQ OR WHITE CRYSTALS

GHS Hazard Classification

Reported hazard statements	H302, H312, H350, H301, H311 (21.2%), H315 (64.7%), H318 (64.7%), H319 (16.6%)

Documented Uses

• 1,3-Propane sultone is used as a chemical intermediate to introduce sulfopropyl groups into molecules and to confer water solubility and anionic character.
• Used as a chemical intermediate in the production of organic chemicals; [HSDB]
• 1,3-PROPANE SULTONE IS USED AS CHEMICAL INTERMEDIATE TO INTRODUCE SULFOPROPYL GROUP ... INTO MOLECULES, & TO CONFER WATER SOLUBILITY & ANIONIC CHARACTER.
• CHEM INT, EG, A SULFOALKYLATING AGENT (FORMER USE)
• PREPN: 1,3-PROPANE SULTONE IS PRODUCED COMMERCIALLY BY DEHYDRATING GAMMA-HYDROXY-PROPANESULFONIC ACID, WHICH IS PREPARED FROM SODIUM HYDROXYPROPANESULFONATE. THIS SODIUM SALT IS PREPARED BY ADDITION OF SODIUM BISULFITE TO ALLYL ALCOHOL.
• All Other Chemical Product and Preparation Manufacturing

Synonyms

1120-71-4; 1,3-PROPANE SULTONE; Propane sultone; 1,2-oxathiolane 2,2-dioxide; Propanesultone; 1,2-Oxathiolane, 2,2-dioxide; RCRA waste number U193; DTXSID8021195; 3-Hydroxy-1-propanesulfonic acid gamma-sultone; 1,2-Oxathrolane 2,2-dioxide; 3-Hydroxy-1-propanesulphonic acid sultone; L6NTK7VJX9; 3-HYDROXY-1-PROPANESULFONIC ACID SULTONE; NSC-42386; 1-Propanesulfonic acid, 3-hydroxy-, gamma-sultone; DTXCID001195

Frequently Asked Questions

What are the CAS number and molecular formula of 1,3-Propane sultone?

CAS 1120-71-4; molecular formula C3H6O3S; molecular weight — g/mol.

What other names is 1,3-Propane sultone known by?

1120-71-4, 1,3-PROPANE SULTONE, Propane sultone, 1,2-oxathiolane 2,2-dioxide, Propanesultone, 1,2-Oxathiolane, 2,2-dioxide.

Is 1,3-Propane sultone classified as hazardous?

Hazard statements reported: H302, H312, H350, H301, H311.

What are the key physical properties of 1,3-Propane sultone?

Odor: Foul odor above 31.11 °C.; Boiling Point: 180 °C at 0.039 atm.; Melting Point: 86 °F (NIOSH, 2024); Melting Point: 31 °C.

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.