Molekula
Chromotrope 2R (C.I. 16570)
Chromotrope 2R (C.I. 16570) is a disodium salt of a diazo dye used primarily as a colorant in textile and paper applications. It is a water-soluble, red-violet powder with a molecular formula of C16H10N2Na2O8S2 and a molecular weight of 468.37 g/mol. CAS number: 4197-07-3. Store at ambient temperature. Signal word: Warning. Molekula supplies Chromotrope 2R from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Overview
Chromotrope 2R (C.I. 16570) is a disodium salt of a diazo dye used primarily as a colorant in textile and paper applications. It is a water-soluble, red-violet powder with a molecular formula of C16H10N2Na2O8S2 and a molecular weight of 468.37 g/mol. CAS number: 4197-07-3. Store at ambient temperature. Signal word: Warning. Molekula supplies Chromotrope 2R from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Specifications
| Property | Value |
|---|---|
| Appearance | Dark brown powder |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Shelf Life | 24 months |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| CAS Number | 4197-07-3 |
| Molecular Formula | C16H10N2Na2O8S2 |
| Molecular Weight | 468.37 |
| SMILES | C1=CC=C(C=C1)N=NC2=C(C3=C(C=C(C=C3C=C2S(=O)(=O)[O-])S(=O)(=O)[O-])O)O.[Na+].[Na+] |
| REACH Code | Y113 |
| HTS Code | 2927.00.50.00 |
| Tariff Code | 2927000090 |
Safety & GHS
-
Explosive
GHS01
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
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 Chromotrope 2R used for?
Chromotrope 2R is primarily used as a dye in the textile and leather industries, providing bright red to violet shades.
What is the chemical formula and molecular weight of Chromotrope 2R?
The formula is C16H10N2Na2O8S2 with a molecular weight of 468.37 g/mol.
How should Chromotrope 2R be stored?
It should be stored at ambient temperature, protected from moisture and direct sunlight.
What grade of Chromotrope 2R is available?
Molekula supplies Chromotrope 2R in technical grade, suitable for industrial applications.
Can Molekula supply Chromotrope 2R in bulk?
Yes, Molekula can supply Chromotrope 2R in bulk quantities—please contact sales for details.
What documentation comes with a Chromotrope 2R order?
Each order includes a Certificate of Analysis and Safety Data Sheet (SDS) compliant with GHS standards.
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.