Molekula
Benzenesulfinic acid sodium salt
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Benzenesulfinic acid sodium salt is an organic sodium salt derived from benzenesulfinic acid, primarily used as a reducing agent in organic synthesis, dye manufacturing, and as a precursor in pharmaceutical and agrochemical production. It is a white to off-white crystalline solid with high solubility in water and polar solvents. This chemical has a CAS number of 873-55-2, with the molecular formula C6H5SO2Na and a molecular weight of 164.16. It is stable under ambient storage conditions and poses no acute hazards, requiring no signal word classification. Molekula supplies Benzenesulfinic acid sodium salt from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
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100 g — $58.70 per pack
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Specifications
| Property | Value |
|---|---|
| Appearance | White to off white powder |
| Heavy metals | ≤ 0.01% |
| Identification | Conforms to reference |
| Turbidity | ≤ 4 |
| Assay (HPLC) | ≥98.0% |
| Sodium chloride | ≤ 0.5% |
| Sodium sulphate | ≤ 0.5% |
| Iron (Fe) | ≤ 0.01% |
| pH (1% sol.) | 6.0 - 7.5 |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 115 °C |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| SKU | 65875585 |
| CAS Number | 873-55-2 |
| Molecular Formula | C6H5SO2Na |
| Molecular Weight | 164.16 |
| Exact Mass | 164.9986 |
| SMILES | C1=CC=C(C=C1)S(=O)O.[Na] |
| InChIKey | RWDJJOUSDATHMI-UHFFFAOYSA-N |
| InChI | InChI=1S/C6H6O2S.Na/c7-9(8)6-4-2-1-3-5-6;/h1-5H,(H,7,8); |
| PubChem CID | 24192231 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 29309029 |
| Tariff Code | 2930909599 |
Safety & GHS
Precautionary statements
- P264 Wash thoroughly after handling
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- benzenesulfinic acid sodium
- RWDJJOUSDATHMI-UHFFFAOYSA-N
- Sodium benzenesulfinate
Frequently asked questions
What is benzenesulfinic acid sodium salt commonly used for?
It is primarily used as a reducing agent in organic synthesis, as a sulfinate nucleophile and sulfonyl radical source for the preparation of sulfones and in sulfonylation reactions, and in the production of pharmaceuticals and agrochemicals.
What is the chemical formula and molecular weight of benzenesulfinic acid sodium salt?
The chemical formula is C₆H₅SO₂Na, and the molecular weight is 164.16 g/mol.
How should benzenesulfinic acid sodium salt be stored?
Store at ambient conditions in a cool, dry place, away from incompatible substances.
What grades or purities are available for this product?
Molekula supplies this product in technical grade and high-purity (98%+) forms, depending on application requirements.
Can Molekula supply benzenesulfinic acid sodium salt in bulk quantities?
Yes, we offer bulk packaging options (e.g., 5 kg, 25 kg, and larger) for industrial and large-scale applications.
What documentation is provided with an order of benzenesulfinic acid sodium salt?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and batch-specific documentation for traceability.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.