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CAS 1 record

CAS 1120-71-4

CAS 1120-71-4 matches 1 EU annex record across Annex II–VI of Regulation 1223/2009.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 1120-71-4
CAS 1120-71-4PubChem CID 14264

Propane sultone

1,3-Propane sultone is a sultone. — ChEBI

IUPAC name
oxathiolane 2,2-dioxide
Molecular formula
C3H6O3S
Molecular weight
122.15 g/mol
Exact mass
122.00376522 Da
XLogP3
-0.2
Topological polar surface area
51.8 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
3
Covalent units
1
Defined stereocentres
0

Also known as

1,3-PROPANE SULTONE1,2-oxathiolane 2,2-dioxidePropanesultone1,2-Oxathiolane, 2,2-dioxideRCRA waste number U1933-Hydroxy-1-propanesulfonic acid gamma-sultone1,2-Oxathrolane 2,2-dioxide3-Hydroxy-1-propanesulphonic acid sultone
16 more reported names
L6NTK7VJX93-HYDROXY-1-PROPANESULFONIC ACID SULTONENSC-423861-Propanesulfonic acid, 3-hydroxy-, gamma-sultonegamma-Propane sultoneRefChem:729061-Propanesulfonic acid-3-hydroxy-gamma-sultone214-317-93-Hydroxythietane-1,1-Dioxide1,3-Propanesultone.gamma.-Propane sultoneNSC 423861,3-Propanesulfonate1,3-TRIMETHYLENE SULTONE1,2lambda6-oxathiolane-2,2-dione3-Hydroxy-1-propanesulfonic acid .gamma.-sultone
Open full PubChem recordPubChem annotations3D structure image
External database identifiers

Evidence from additional scientific databases

NIH PubChem PUG-View
Exact identifier match14264

Attributed physical-property, hazard, environmental and use annotations.

  • First Aid: Excerpt from NIOSH Pocket Guide for Propane sultone:; Eye: IRRIGATE IMMEDIATELY - If this chemical contacts the eyes, immediately wash (irrigate) the eyes with large amounts of water, occasionally lifting the lower and upper lids. Get medical attention immediately.; Skin: WATER FLUSH IMMEDIATELY - If this chemical contacts the skin, immediately flush the contaminated skin with water. If this chemical penetrates the clothing, immediately remove the clothing and flush the skin with water. Get medical attention promptly.; Breathing: RESPIRATORY SUPPORT - If a person breathes large amounts of this chemical, move the exposed person to fresh air at once. If breathing has stopped, perform artificial respiration. Keep the affected person warm and at rest. Get medical attention as soon as possible.; Swallow: MEDICAL ATTENTION IMMEDIATELY - If this chemical has been swallowed, get medical attention immediately. (NIOSH, 2024) Source: CAMEO Chemicals
  • First Aid: (General first aid procedures); Eye: Irrigate immediately - If this chemical contacts the eyes, immediately wash (irrigate) the eyes with large amounts of water, occasionally lifting the lower and upper lids. Get medical attention immediately.; Skin: Water flush immediately - If this chemical contacts the skin, immediately flush the contaminated skin with water. If this chemical penetrates the clothing, immediately remove the clothing and flush the skin with water. Get medical attention promptly.; Breathing: Respiratory support; Swallow: Medical attention immediately - If this chemical has been swallowed, get medical attention immediately. Source: The National Institute for Occupational Safety and Health (NIOSH)
  • Signal: Danger Source: Regulation (EC) No 1272/2008 of the European Parliament and of the Council
  • GHS Hazard Statements: H302: Harmful if swallowed [Warning Acute toxicity, oral]; H312: Harmful in contact with skin [Warning Acute toxicity, dermal]; H350: May cause cancer [Danger Carcinogenicity] Source: Regulation (EC) No 1272/2008 of the European Parliament and of the Council
  • Precautionary Statement Codes: P203, P264, P270, P280, P301+P317, P302+P352, P317, P318, P321, P330, P362+P364, P405, and P501 (click each P-code to see the statement) Source: Regulation (EC) No 1272/2008 of the European Parliament and of the Council
  • Signal: Danger Source: European Chemicals Agency (ECHA)
  • GHS Hazard Statements: H301+H311 (21.2%): Toxic if swallowed or in contact with skin [Danger Acute toxicity, oral; acute toxicity, dermal]; H301 (65.1%): Toxic if swallowed [Danger Acute toxicity, oral]; H302 (34.9%): Harmful if swallowed [Warning Acute toxicity, oral]; H311 (64.7%): Toxic in contact with skin [Danger Acute toxicity, dermal]; H312 (35.3%): Harmful in contact with skin [Warning Acute toxicity, dermal]; H315 (64.7%): Causes skin irritation [Warning Skin corrosion/irritation]; H318 (64.7%): Causes serious eye damage [Danger Serious eye damage/eye irritation]; H319 (16.6%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]; H332 (64.7%): Harmful if inhaled [Warning Acute toxicity, inhalation]; H341 (64.7%): Suspected of causing genetic defects [Warning Germ cell mutagenicity]; H350 (100%): May cause cancer [Danger Carcinogenicity]; H412 (43.2%): Harmful to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard] Source: European Chemicals Agency (ECHA)
  • Precautionary Statement Codes: P203, P261, P262, P264, P264+P265, P270, P271, P273, P280, P301+P316, P301+P317, P302+P352, P304+P340, P305+P351+P338, P305+P354+P338, P316, P317, P318, P321, P330, P332+P317, P337+P317, P361+P364, P362+P364, P405, and P501 (click each P-code to see the statement) Source: European Chemicals Agency (ECHA)
  • ECHA C&L Notifications Summary: Aggregated GHS information provided per 241 reports by companies from 12 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.; Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website. Source: European Chemicals Agency (ECHA)
  • Signal: Danger Source: NITE-CMC
  • GHS Hazard Statements: H301: Toxic if swallowed [Danger Acute toxicity, oral]; H311: Toxic in contact with skin [Danger Acute toxicity, dermal]; H315: Causes skin irritation [Warning Skin corrosion/irritation]; H319: Causes serious eye irritation [Warning Serious eye damage/eye irritation]; H332: Harmful if inhaled [Warning Acute toxicity, inhalation]; H341: Suspected of causing genetic defects [Warning Germ cell mutagenicity]; H350: May cause cancer [Danger Carcinogenicity]; H370: Causes damage to organs [Danger Specific target organ toxicity, single exposure]; H402: Harmful to aquatic life [Hazardous to the aquatic environment, acute hazard]; H412: Harmful to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard] Source: NITE-CMC
  • Precautionary Statement Codes: P203, P260, P261, P262, P264, P264+P265, P270, P271, P273, P280, P301+P316, P302+P352, P304+P340, P305+P351+P338, P308+P316, P316, P317, P318, P321, P330, P332+P317, P337+P317, P361+P364, P362+P364, P405, and P501 (click each P-code to see the statement) Source: NITE-CMC
  • GHS Hazard Statements: H301: Toxic if swallowed [Danger Acute toxicity, oral]; H311: Toxic in contact with skin [Danger Acute toxicity, dermal]; H341: Suspected of causing genetic defects [Warning Germ cell mutagenicity]; H350: May cause cancer [Danger Carcinogenicity] Source: NITE-CMC
  • Precautionary Statement Codes: P203, P262, P264, P270, P280, P301+P316, P302+P352, P316, P318, P321, P330, P361+P364, P405, and P501 (click each P-code to see the statement) Source: NITE-CMC
  • Environmental Bioconcentration: Since 1,3-propane sultone hydrolyzes rapidly in water(1,2), bioconcentration in aquatic organisms is not expected to be a significant process(SRC). Source: Hazardous Substances Data Bank (HSDB)
  • Environmental Fate: TERRESTRIAL FATE: If 1,3-propane sultone is released to soil, it will be expected to rapidly hydrolyze if the soil is moist, based upon the rapid hydrolysis observed in aqueous solution(1,2,SRC). Since it rapidly hydrolyzes, adsorption to and volatilization from moist soil are not expected to be significant processes, although no data specifically regarding the fate of 1,3-propane sultone in soil were located(SRC). Source: Hazardous Substances Data Bank (HSDB)
  • Environmental Fate: AQUATIC FATE: If 1,3-propane sultone is released to water, it will be expected to rapidly hydrolyze, based upon a measured rate constant of 8.2X10-2 hr-1 for hydrolysis in aqueous solution at 25 °C(1) which corresponds to a half-life of 8.5 hr(SRC). The product of hydrolysis is 3-hydroxy-1-propanesulphonic acid(2). Since it rapidly hydrolyzes, bioconcentration, volatilization, and adsorption to sediment and suspended solids are not expected to be significant processes((SRC). No data were located concerning biodegradation, but 1,3-propane sultone will probably abiotically hydrolyze significantly faster than biodegradation(SRC). Source: Hazardous Substances Data Bank (HSDB)
  • Environmental Fate: ATMOSPHERIC FATE: If 1,3-propane sultone is released to the atmosphere, it will be susceptible to photooxidation via vapor phase reaction with photochemically produced hydroxyl radicals. An atmospheric half-life of 8 days at an atmospheric concentration of 5X10+5 hydroxyl radicals per cu cm has been calculated for this process based upon an estimated rate constant(1,SRC). Source: Hazardous Substances Data Bank (HSDB)

Mapped by: Existing checksum-valid CAS to unique PubChem CID match. Retrieved: 2026-08-31. Open source record

Scientific classifications and hazard annotations provide context and do not replace the market-specific regulatory decision shown above.

Additional source coverage and match status
SourceResultChecked
NIH PubChem PUG-ViewExact match2026-08-31

A recorded no-match is useful evidence that the source was checked; it is not a claim that the substance does not exist elsewhere.

Retrieved from NIH PubChem on 2026-09-02 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Records for CAS 1120-71-4

1 total

How CAS 1120-71-4 is used on this site

CAS 1120-71-4 is the Chemical Abstracts Service identifier used to pin this page to a specific substance. In the current dataset, 1 EU annex record shares this identifier, which helps you cross-check whether the same substance appears under one regulatory context or several.

Use this page when a supplier specification, SDS or raw-material dossier gives you CAS 1120-71-4 and you need to see every linked Annex II–VI record in one place. The entry cards above are the quickest route to concentration limits, warnings, annex placement and product-type conditions.

Frequently asked questions

A substance identified by CAS 1120-71-4 may appear in multiple EU cosmetic regulation annexes when it is subject to different conditions in different contexts. For example, a substance might be restricted under Annex III with specific conditions, and the same CAS might also appear in Annex IV as an approved colorant under separate entry conditions. Each entry must be reviewed individually.

Cross-reference the CAS number against your raw material specification sheets and CoA documents. When a CAS appears in Annex II, verify absence. When it appears in Annex III, verify that concentration limits and product type conditions are met in your formulation. All annex entries sharing this CAS number are listed above.

A CAS number is assigned by the Chemical Abstracts Service (USA) and is globally recognised. An EC number is a European Commission identifier from inventories such as EINECS, ELINCS or the NLP list. Both identifiers may appear in EU cosmetic annex entries. Some substances have both, some have only one, and some older entries may have neither.

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