United States Pharmacopeia (USP) Reference Standard

2,3-Dihydroxy-1,2-benzisothiazol-3-one-1,1-dioxide, o-Benzoic sulfimide, 2-Sulfobenzoic acid imide
Empirical Formula (Hill Notation):
CAS Number:
Molecular Weight:
Beilstein/REAXYS Number:
MDL number:
PubChem Substance ID:


pharmaceutical primary standard






226-229 °C (lit.)

Featured Industry

Pharmaceutical (small molecule)



SMILES string




InChI key


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General description

This product is provided as delivered and specified by the issuing Pharmacopoeia. All information provided in support of this product, including SDS and any product information leaflets have been developed and issued under the Authority of the issuing Pharmacopoeia.For further information and support please go to the website of the issuing Pharmacopoeia.

Biochem/physiol Actions

A sweet tastant for mammals. A glycerol taste receptor binding site specific for glucose has been proposed in drosophila.

Analysis Note

These products are for test and assay use only. They are not meant for administration to humans or animals and cannot be used to diagnose, treat, or cure diseases of any kind.  ​

Other Notes

USP issued SDS can be found here.
Sales restrictions may apply.


NONH for all modes of transport

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Certificate of Origin

J Whysner et al.
Pharmacology & therapeutics, 71(1-2), 225-252 (1996-01-01)
Sodium saccharin (NaSac) produces bladder tumors consistently in male rats only after lifetime exposure that begins at birth. NaSac is not metabolized and is negative in most genotoxicity tests. NaSac-induced cell damage and proliferation have been proposed as important factors...
The toxicological effects of saccharin in short-term genotoxicity assays.
D L Arnold et al.
Mutation research, 221(2), 69-132 (1989-09-01)
R L Anderson
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association, 26(7), 637-644 (1988-07-01)
An hypothesis is presented of a mechanism for the sodium saccharin (NaS)-associated tumorigenesis of the urinary bladder that occurs in male rats. The ingestion of high doses of NaS is associated with increased urine volume and bladder mass. In rats...
D L Arnold et al.
Toxicology, 27(3-4), 179-256 (1983-07-01)
Saccharin, first synthesized in 1879, eventually became popular as an inexpensive substitute for sugar, particularly as a non-caloric sweetner. The dispute concerning the safety of saccharin for human consumption is almost as old as saccharin itself. In this article, the...
Marilyn E Carroll et al.
Behavioural pharmacology, 19(5-6), 435-460 (2008-08-12)
A positive relationship between the consumption of sweetened dietary substances (e.g. saccharin and sucrose) and drug abuse has been reported in both the human and other animal literature. The proposed genetic contribution to this relationship has been based on evidence...

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