Benzenesulfonic Anhydride CAS 512-35-6
| CAS No. | 512-35-6 |
| Molecular Formula | C12H10O5S2 |
| Molecular Weight | 298.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies Benzenesulfonic Anhydride (CAS 512-35-6), a certified reference material (molecular formula C12H10O5S2, MW 298.33 g/mol) for analytical method development and quality control.
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, Benzenesulfonic Anhydride is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 298.33 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
CATO manufactures Benzenesulfonic Anhydride under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C12H10O5S2 |
| Molecular Weight | 298.33 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Sulfur Atoms | 2 |
Related Benzenesulfonic Standards
- Benzenesulfonic acid, 2-(trifluoromethyl)-, 2-(2,2-difluoroethylidene)hydrazide (CAS 2245235-35-0)
- Benzenesulfonic Impurity 5 (CAS 51395-19-8)
- Benzenesulfonic Impurity 6 (CAS 51395-20-1)
- Benzenesulfonic Impurity 3 (CAS 1352414-81-3)
- Benzenesulfonic (2S)-4-bromopyrrolidine-2-carboxylic anhydride (CAS 61264-65-1)
- Benzenesulfonic acid, 2-(trifluoromethyl)-, 2-(2,2,2-trifluoroethylidene)hydrazide (CAS 2236129-81-8)
- Benzenesulfonic acid, 4-(bromomethyl)-, sodium salt (1:1) (CAS 32014-22-5)
- Benzenesulfonic (2S)-4-(dimethylamino)-1-methylpyrrolidine-2-carboxylic anhydride (CAS 62305-75-3)
Recommended Standards
- 9,10-Dimethyl-9,10-dihydro-9,10-ethanoanthracene-2,3,6,7-tetraol (CAS 95156-77-7)
- Benzoin Hemisuccinate (CAS 306935-85-3)
- 9-(Hydroxymethyl)-2,3,6-trimethoxyphenanthrene (CAS 30062-14-7)
- Benzyl (2,2-difluoro-2-(piperidin-4-yl)ethyl)carbamate (CAS 2306261-05-0)
- 8-(Acetyl(4'-Fluoro(1,1'-Biphenyl)-4-ylAmino)-2'-Deoxy-Guanosine (CAS 67764-18-5)
- N-(4-Chlorobutyl)butyramide (CAS 329270-31-7)
- D-Alanine Sofosbuvir (CAS 1064684-71-4)
- 2-(Benzylthio)-9-(3,4,5-trimethoxyphenyl)-5,6,7,9-tetrahydro-[1,2,4]triazolo[5,1-b]quinazolin-8(4H)-one (CAS 536981-11-0)
- Metaraminol Impurity 19 (CAS CATO-C4X-225219)
- 1-(2-Chlorophenyl)hexane-1,3-dione (CAS 256439-86-8)
- 5-(2-Chloroethyl)tetrazole (CAS 18755-46-9)
- 3,4-Dichloro-2-(difluoromethoxy)benzylamine (CAS 1803789-53-8)
- 3,5-Difluoro-4-iodobenzaldehyde (CAS 357166-64-4)
- Fibrinogen-Binding Peptide (CAS 137235-80-4)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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