Molekula
4-Chloro-5-chlorosulfonylsalicylic acid
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
4-Chloro-5-chlorosulfonylsalicylic acid is a chlorinated salicylic (benzoic) acid bearing a sulfonyl chloride group, used in organic synthesis, particularly in the production of dyes, pharmaceuticals, and specialty chemicals. It is a crystalline solid with the molecular formula C7H4Cl2O5S and a molecular weight of 271.07 g/mol. It is classified as dangerous and must be stored at 2 to 8 °C. Molekula supplies 4-Chloro-5-chlorosulfonylsalicylic acid 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.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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100 mg — $135.80 per pack
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Off white powder |
| Assay/Purity | >93 |
| Melting Point | 180-182°C |
| Identification | H NMR (DMSO-d6) Spectroscopic and mass spectroscopic analysis |
| Solubility | DMSO, Methanol |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Transport Class | 8 |
| Packing Group | III |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| SKU | 90005198 |
| CAS Number | 14665-31-7 |
| IUPAC Name | 4-chloro-5-chlorosulfonyl-2-hydroxybenzoic acid |
| Molecular Formula | C7H4Cl2O5S |
| Molecular Weight | 271.07 |
| Exact Mass | 269.9156 |
| SMILES | C1=C(C(=CC(=C1S(=O)(=O)Cl)Cl)O)C(=O)O |
| InChIKey | CRNODOIWKMVMLY-UHFFFAOYSA-N |
| InChI | InChI=1S/C7H4Cl2O5S/c8-4-2-5(10)3(7(11)12)1-6(4)15(9,13)14/h1-2,10H,(H,11,12) |
| PubChem CID | 13840154 |
| UN Number | UN3261 |
| REACH Code | Y110 |
| HTS Code | 29182900 |
| Tariff Code | 2918290090 |
Safety & GHS
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Corrosive
GHS05
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Health Hazard
GHS07
Hazard statements
- H314 (sub cat. 1B) Causes severe skin burns and eye damage
- H318 Causes serious eye damage
- 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, 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-Chloro-5-(chlorosulfonyl)-2-hydroxybenzoic Acid
- Benzoic acid, 4-chloro-5-(chlorosulfonyl)-2-hydroxy-
- CRNODOIWKMVMLY-UHFFFAOYSA-N
Frequently asked questions
What is 4-Chloro-5-chlorosulfonylsalicylic acid used for?
It is primarily used as an intermediate in the synthesis of pharmaceuticals and dyes, particularly in the production of sulfonamide derivatives.
What is the chemical formula and molecular weight?
The formula is C7H4Cl2O5S with a molecular weight of 271.07 g/mol.
How should this compound be stored?
Store at 2 to 8 °C in a cool, dry place, protected from light and moisture.
What grade is available?
Available in technical grade; custom purity levels may be requested upon inquiry.
Can Molekula supply this in bulk?
Yes, bulk quantities are available—please contact our sales team for pricing and availability.
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.