Molekula
Phenol-4-sulfonic acid sodium salt dihydrate
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
Phenol-4-sulfonic acid sodium salt dihydrate is a sodium salt of para-hydroxybenzenesulfonic acid, used in organic synthesis and as an intermediate in dye and pharmaceutical manufacturing. It appears as a white to off-white crystalline powder. CAS: 10580-19-5, Molecular formula: HOC6H4SO3Na·2H2O, Molecular weight: 232.20 g/mol. Store at ambient temperature. Signal word: Warning. Molekula supplies Phenol-4-sulfonic acid sodium salt dihydrate 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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25 g — £26.30 per pack ex VAT · £31.56 inc. VAT
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Specifications
| Property | Value |
|---|---|
| Appearance | White powder |
| Chloride (Cl-) | ≤ 0.02% |
| Assay | ≥ 99.0% |
| Insoluble Matter | ≤ 0.01% |
| Heavy Metals (Pb) | ≤ 0.002% |
| Iron (Fe) | ≤ 0.002% |
| Water (KF) | ≤ 15.0% |
| Identification (IR) | Conforms to structure |
| Sulphates (SO4)(2-) | ≤ 0.5% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 30226220 |
| CAS Number | 10580-19-5 |
| IUPAC Name | sodium;4-hydroxybenzenesulfonate;dihydrate |
| Molecular Formula | HOC6H4SO3Na·2H2O |
| Molecular Weight | 232.20 |
| Exact Mass | 232.0018 |
| SMILES | C1=CC(=CC=C1O)S(=O)(=O)[O-].O.O.[Na+] |
| InChIKey | SXONATFNYJWFNK-UHFFFAOYSA-M |
| InChI | InChI=1S/C6H6O4S.Na.2H2O/c7-5-1-3-6(4-2-5)11(8,9)10;;;/h1-4,7H,(H,8,9,10);;2*1H2/q;+1;;/p-1 |
| PubChem CID | 23666329 |
| REACH Code | Y113 |
| HTS Code | 29089990 |
| Tariff Code | 2908990000 |
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
- P304+341 IF INHALED: If breathing is difficult, 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
- P333+313 IF skin irritation or a rash occurs: Get medical advice/attention
- P337+313 If eye irritation persists 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
- 4-Hydroxybenzenesulfonic acid sodium salt dihydrate
- 4-Phenolsulfonic acid, sodium salt dihydrate
- Benzenesulfonic acid, 4-hydroxy-, monosodium salt, dihydrate
- BENZENESULFONIC ACID, 4-HYDROXY-, SODIUM SALT, HYDRATE (1:1:2)
- Benzenesulfonic acid, p-hydroxy-, monosodium salt, dihydrate
- PHENOLSULPHONATE SODIUM
- sodium 4-hydroxybenzene-1-sulfonate dihydrate
- Sodium 4-hydroxybenzenesulfonate dihydrate
- sodium p-phenolsulfonate dihydrate
- SULPHOCARBOLATE SODIUM
Frequently asked questions
What is Phenol-4-sulfonic acid sodium salt dihydrate 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 HOC6H4SO3Na·2H2O with a molecular weight of 232.20 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 options may be available upon request.
Can Molekula supply this in bulk?
Yes, Molekula can supply Phenol-4-sulfonic acid sodium salt dihydrate 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); additional documentation can be provided 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.