2-Sulfobenzoic anhydride, 95%
2-Sulfobenzoic anhydride, 95% (CAS 81-08-3) supplier Zemixal. Lab and bulk packs, batch COA, fast global delivery. Catalogue no. ZX-011362.
About 2-Sulfobenzoic anhydride, 95%
Researchers and plant chemists source 2-Sulfobenzoic anhydride, 95% from Zemixal for routine and specialised work. Identity at a glance (95%): CAS 81-08-3, formula C7H4O4S and molar mass 184.17 g/mol. Typical appearance is white to orange to green powder or crystals.
Common uses in the lab and plant
- Organic synthesis
- API synthesis
Storage and safety notes
Reported physical data: melting point 123-128 °C. Classified under GHS with signal word Danger and hazard statements H302, H312, H314 and H315. Read the SDS before first use.
Available as 25 g and 100 g. Larger or split packs can be arranged. Each lot travels with a batch certificate of analysis and a 16-section SDS. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.
Typical uses
- Organic synthesis
- API synthesis
Applications
Specifications and identifiers
| Product name | 2-Sulfobenzoic anhydride, 95% |
|---|---|
| Catalogue number | ZX-011362 |
| CAS number | 81-08-3 |
| IUPAC name | 1,1-dioxo-2,1lambda6-benzoxathiol-3-one |
| Molecular formula | C7H4O4S |
| Molar mass | 184.17 g/mol |
| Exact mass | 183.983 |
| Purity / assay | 95% |
| Physical form | Crystalline |
| Appearance | White to orange to green powder or crystals |
| Melting point | 123-128 °C |
| XLogP3 | 1 |
| H-bond donors / acceptors | 0 / 4 |
| Topological polar surface area | 68.8 Ų |
| HS code | 29332990 |
| InChIKey | NCYNKWQXFADUOZ-UHFFFAOYSA-N |
| SMILES | C1=CC=C2C(=C1)C(=O)OS2(=O)=O |
| PubChem CID | 65729 |
| Synonyms | 2-Sulfobenzoic acid cyclic anhydride, o-Sulfobenzoic acid anhydride, o-Sulfobenzoic anhydride, o-Sulfobenzoic acid, cyclic anhydride, Benzoic acid, 2-sulfo-, cyclic anhydride, Benzoic acid, o-sulfo-, cyclic anhydride, 2-sulfobenzoic cyclic anhydride, Sulfobenzoic anhydride, 3H-2,1-Benzoxathiol-3-one, 1,1-dioxide, 3H-Benzo[c][1,2]oxathiol-3-one 1,1-dioxide, 2-Sulphobenzoic anhydride, 2,1-Benzoxathiol-3-one-1,1-dioxide |
Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.
Safety and GHS hazards
Signal word Danger
- H302Harmful if swallowed
- H312Harmful in contact with skin
- H314Causes severe skin burns and eye damage
- H315Causes skin irritation
- H318Causes serious eye damage
- H319Causes serious eye irritation
- H332Harmful if inhaled
- H335May cause respiratory irritation
Precautionary statements P260, P261, P264, P264 + P265, P270, P271, P280, P301 + P317, P301 + P330 + P331, P302 + P352, P302 + P361 + P354, P304 + P340, P305 + P351 + P338, P305 + P354 + P338, P316, P317, P319, P321, P330, P332 + P317, P337 + P317, P362 + P364, P363, P403 + P233
Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.
Pack sizes
| 25 g | Quoted on request | |
| 100 g | Quoted on request |
Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.
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Other grades with CAS 81-08-3
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