Molekula
Fast Red B Salt
Fast Red B Salt is a diazo dye used in textile and paper dyeing, offering vibrant red coloration. It is a salt form of a reactive dye, suitable for fiber fixation. CAS: 49735-71-9, Molecular Formula: C10H7O6S2·C7H6N3O3, Molecular Weight: 467.43 g/mol. Stored at ambient temperature. No signal word applies. Molekula supplies Fast Red B Salt from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Overview
Fast Red B Salt is a diazo dye used in textile and paper dyeing, offering vibrant red coloration. It is a salt form of a reactive dye, suitable for fiber fixation. CAS: 49735-71-9, Molecular Formula: C10H7O6S2·C7H6N3O3, Molecular Weight: 467.43 g/mol. Stored at ambient temperature. No signal word applies. Molekula supplies Fast Red B Salt from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Pricing & pack sizes
Specifications
| Property | Value |
|---|---|
| Appearance | Yellow, tan or brown powder |
| Dye Content | ≥50% |
| Identification (IR) | Conforms to reference |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Shelf Life | 24 months |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 32260403 |
| CAS Number | 49735-71-9 |
| Molecular Formula | C10H7O6S2·C7H6N3O3 |
| Molecular Weight | 467.43 |
| SMILES | COC1=C(C=CC(=C1)[N+](=O)[O-])[N+]#N.C1=CC2=C(C=CC=C2S(=O)(=O)[O-])C(=C1)S(=O)(=O)O |
| REACH Code | Y110 |
| HTS Code | 2927.00.3000 |
| Tariff Code | 2927000090 |
Safety & GHS
-
Health Hazard
GHS07
-
Serious Health Hazard
GHS08
Hazard statements
- H302 Harmful if swallowed
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
- H351 Suspected of causing cancer
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+P330+P331 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting
- P302+P352 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+P351+P338 IF IN EYES: Rinse continuously 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.
Synonyms
No alternate names recorded for this product.
Frequently asked questions
What is Fast Red B Salt used for?
Fast Red B Salt is primarily used as a dye intermediate in the production of azo dyes for textiles and leather.
What is the chemical formula and molecular weight of Fast Red B Salt?
The formula is C10H7O6S2·C7H6N3O3 with a molecular weight of 467.43 g/mol.
How should Fast Red B Salt be stored?
It should be stored at ambient temperature, away from moisture and direct sunlight.
What grade of Fast Red B Salt is available?
Molekula supplies Fast Red B Salt in technical grade for industrial applications.
Can Molekula supply Fast Red B Salt in bulk?
Yes, Molekula can supply Fast Red B Salt in bulk quantities; please contact our sales team for pricing and availability.
What documentation comes with a Fast Red B Salt 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.