Molekula
Benzaldehyde-2-sulfonic acid sodium salt (2-Formylbenzenesulfonic 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
Benzaldehyde-2-sulfonic acid sodium salt, also known as 2-Formylbenzenesulfonic acid sodium salt, is a sodium salt used in organic synthesis and as an intermediate in dye and pharmaceutical manufacturing. Beyond synthesis work, the EPA also allows it as an inert component in pesticide formulations not intended for food use. It appears as a white to off-white crystalline powder. CAS: 1008-72-6, Molecular formula: C7H5NaO4S, Molecular weight: 208.17 g/mol, Storage: Ambient, Signal word: Warning. Molekula supplies Benzaldehyde-2-sulfonic 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 — £29.50 per pack ex VAT · £35.40 inc. VAT
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Specifications
| Property | Value |
|---|---|
| Appearance | White powder or solid |
| Water | ≤1% |
| Assay | ≥95% |
| Water insoluble matter | ≤0.05% |
| Identification (IR) | Conforms to reference |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| SKU | 21896678 |
| CAS Number | 1008-72-6 |
| IUPAC Name | sodium 2-formylbenzenesulfonate |
| EC Number | 213-758-4 |
| Molecular Formula | C7H5NaO4S |
| Molecular Weight | 208.17 |
| Exact Mass | 207.9806 |
| SMILES | C1=CC=C(C(=C1)C=O)S(=O)(=O)[O-].[Na+] |
| InChIKey | ADPUQRRLAAPXGT-UHFFFAOYSA-M |
| InChI | InChI=1S/C7H6O4S.Na/c8-5-6-3-1-2-4-7(6)12(9,10)11;/h1-5H,(H,9,10,11);/q;+1/p-1 |
| PubChem CID | 3794540 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29130040 |
| Tariff Code | 2913000090 |
Safety & GHS
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Health Hazard
GHS07
Hazard statements
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
- P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Russian, 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
- 2-Formylbenzenesulfonic acid sodium salt
- 2-Sulfobenzaldehyde, sodium salt
- Benzaldehyde-2-sulfonic acid sodium salt
- Benzenesulfonic acid, 2-formyl-, sodium salt
- Benzenesulfonic acid, 2-formyl-, sodium salt (1:1)
- o-Formylbenzenesulfonic acid sodium salt
- Sodium 2-formylbenzenesulfonate
- Sodium benzaldehyde-2-sulfonate
- Sodium o-benzaldehyde sulfonate
- Sodium o-formylbenzenesulfonate
Frequently asked questions
What is Benzaldehyde-2-sulfonic acid sodium salt used for?
It is primarily used as an intermediate in the synthesis of dyes, pharmaceuticals, and other specialty chemicals.
What is the chemical formula and molecular weight?
The formula is C7H5NaO4S with a molecular weight of 208.17 g/mol.
How should this compound be stored?
Store at ambient temperature in a dry, well-ventilated area away from incompatible materials.
What grade is available?
Available in technical grade; custom purity levels may be requested.
Can Molekula supply this in bulk?
Yes, Molekula can supply this compound in bulk quantities—please contact sales for details.
What documentation comes with the order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) upon request.
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.