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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 656582Generated: October 23, 2026

Sodium saccharin

https://huagongshe.com/en/chemical/656582

Sodium saccharin molecular structure

Identifiers & Physical Properties

CAS No.128-44-9
Molecular formulaC7H4NNaO3S
Average molar mass205.17 g/mol
Monoisotopic mass204.98095827 g/mol
SMILESO=C1[N-]S(=O)(=O)c2ccccc21.[Na+]
InChIKeyWINXNKPZLFISPD-UHFFFAOYSA-M
PubChem CID656582
ChEMBLCHEMBL2105416
ChEBICHEBI:32112
EC No.204-886-1
DTXSIDDTXSID5021253

Chemical & Physical Properties

Topological polar surface area60.6
Hydrogen bond donors0
Hydrogen bond acceptors4
Rotatable bonds0
Heavy atoms13
Formal charge0
Complexity308
Chemical classesOther Uses -> Food Additives
CosmeticsOral careMasking
FragrancesFragrance Ingredient (Saccharine, sodium salt) -> IFRA transparency List
Food additivesANTIMICROBIAL AGENT, FLAVOR ENHANCER, FLAVORING AGENT OR ADJUVANT, NON-NUTRITIVE SWEETENER, SOLVENT OR VEHICLE -> FDA Substance added to food
Solubilitygreater than or equal to 100 mg/mL at 68 °F (NTP, 1992)
Animal DrugsPharmaceuticals -> UK Veterinary Medicines Directorate List
Melting pointgreater than 572 °F (Decomposes) (NTP, 1992)
Food Contact SubstancesFCS -> FDA Inventory of Food Contact Substances Listed in 21 CFRFCS -> FDA Inventory of Effective Food Contact Substance (FCS) Notifications
Physical DescriptionSaccharin, sodium salt appears as odorless white crystals or crystalline powder. Aqueous solution is neutral or alkaline to litmus, but not alkaline to phenolphthalein. Effloresces in dry air. Intensely sweet taste. (NTP, 1992)Dry PowderLiquidOther SolidWhite odorless solidEffloresces in dry air[CAMEO] White odorless crystals[Mallinckrodt Baker MSDS]

Safety & Regulations

GHS classificationThis chemical does not meet GHS hazard criteria for 95.6% (328 of 343) of all reports.Not ClassifiedAggregated GHS information provided per 343 reports by companies from 9 notifications to the ECHA C&L Inventory.
Regulatory informationChemical: 1,2-Benzisothiazol-3(2H)-one, 1,1-dioxide, sodium salt (1:1)Regulation (EC) No 1831/2003 (amended)1,2-Benzisothiazol-3(2H)-one, 1,1-dioxide, sodium salt (1:1) is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of 1,2-Benzisothiazol-3(2H)-one, 1,1-dioxide, sodium salt (1:1) are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)TP - indicates a substance that is the subject of a proposed TSCA section 4 test rule.Status: Active Update: 29-03-2022 https://echa.europa.eu/registration-dossier/-/registered-dossier/14605Sodium saccharin: Does not have an individual approval but may be used under an appropriate group standard
Other safety informationEvaluation - Chemicals that are unlikely to require further regulation to manage risks to environment
Fire hazardsFlash point data are not available for this chemical, but it is probably combustible. (NTP, 1992)
Health hazardsSYMPTOMS: Symptoms of ingestion of this compound include nausea, vomiting and diarrhea. It may also cause anorexia. Inhalation may result in coughing and sneezing.
Hazards summaryCauses changes in psychophysiological tests in acute oral studies of monkeysCauses kidney and bladder changes in 36-week constant oral studies of rats[RTECS] Usually contains about 5% water[NTP] Acceptable daily intake (ADI) of 0-5 mg/kg[JECFA] The dihydrate is CAS# 6155-57-3Contains 5-6% waterMay cause mechanical eye irritation[Mallinckrodt Baker MSDS]
Reactive groupAmines, Phosphines, and Pyridines
Reactivity ProfileThis compound may react with oxidizing agents. (NTP, 1992). Very weak base in aqueous solution.
Air and Water ReactionsWater soluble.
Hazard Classes and CategoriesNot Classified
Fire fightingFires involving this compound should be controlled with a dry chemical, carbon dioxide or Halon extinguisher. A water spray may also be used. (NTP, 1992)
First aidEYES: First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.
Nonfire spill responseSMALL SPILLS AND LEAKAGE: If you spill this chemical, you should dampen the solid spill material with water, then transfer the dampened material to a suitable container. Use absorbent paper dampened with water to pick up any remaining material. Seal your contaminated clothing and the absorbent paper in a vapor-tight plastic bag for eventual disposal. Wash all contaminated surfaces with a soap and water solution. Do not reenter the contaminated area until the Safety Officer (or other responsible person) has verified that the area has been properly cleaned.
Personal Protective Equipment (PPE)RECOMMENDED RESPIRATOR: Where the neat test chemical is weighed and diluted, wear a NIOSH-approved half face respirator equipped with a combination filter cartridge, i.e. organic vapor/acid gas/HEPA (specific for organic vapors, HCl, acid gas, SO2 and a high efficiency particulate filter). (NTP, 1992)