Molekula
5-Sulfoisophthalic acid, sodium salt
5-Sulfoisophthalic acid, sodium salt is a sodium salt of a sulfonated aromatic dicarboxylic acid used in the synthesis of polyesters and specialty polymers. It serves as a key monomer in producing water-soluble and UV-resistant polymers. CAS: 6362-79-4, Molecular Formula: C8H5NaO7S, Molecular Weight: 268.18 g/mol, Storage: Ambient, Signal Word: Warning. Molekula supplies 5-Sulfoisophthalic acid, sodium salt from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Overview
5-Sulfoisophthalic acid, sodium salt is a sodium salt of a sulfonated aromatic dicarboxylic acid used in the synthesis of polyesters and specialty polymers. It serves as a key monomer in producing water-soluble and UV-resistant polymers. CAS: 6362-79-4, Molecular Formula: C8H5NaO7S, Molecular Weight: 268.18 g/mol, Storage: Ambient, Signal Word: Warning. Molekula supplies 5-Sulfoisophthalic acid, sodium salt from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Specifications
| Property | Value |
|---|---|
| Appearance | White powder |
| pH | 1.8 - 2.2 |
| Sulfate | <500mg/kg |
| Assay | NLT 99% |
| Iron | <5mg/kg |
| Moisture | <0.5% |
| Acidity (mgKOH/g) | 418 +/-3 |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Shelf Life | 24 months |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| CAS Number | 6362-79-4 |
| Molecular Formula | C8H5NaO7S |
| Molecular Weight | 268.18 |
| SMILES | C1=C(C=C(C=C1C(=O)O)S(=O)(=O)[O-])C(=O)O.[Na+] |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2917393000 |
| Tariff Code | 2917398590 |
Safety & GHS
-
Explosive
GHS01
-
Flammable
GHS02
Hazard statements
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
- H361 Suspected of damaging fertility or the unborn child
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P263 Avoid contact during pregnancy/while nursing
- 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
For research and industrial use only
Documents
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.
Pricing & pack sizes
Synonyms
No alternate names recorded for this product.
Frequently asked questions
What is 5-Sulfoisophthalic acid, sodium salt used for?
It is primarily used in the synthesis of polyesters and polyamides for applications in textiles, coatings, and plastics.
What is the chemical formula and molecular weight?
The formula is C8H5NaO7S with a molecular weight of 268.18 g/mol.
How should this compound be stored?
Store at ambient temperature, protected from moisture and heat.
What grade is available?
Available in technical grade; custom grades may be available upon request.
Can Molekula supply this in bulk?
Yes, bulk quantities are available—please contact us for pricing and availability.
What documentation comes with the order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS).
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.