Molekula
Chrysophenine
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
Chrysophenine is a synthetic azo dye, primarily used in textile manufacturing for dyeing wool, silk, and leather a bright yellow shade. It is also employed in biological staining and as a pH indicator. This chemical has the CAS number 2870-32-8, with a molecular formula of C30H26N4Na2O8S2 and a molecular weight of 680.7. It carries no signal word, indicating low acute toxicity under standard handling conditions. Molekula supplies Chrysophenine 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
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
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 | Yellow/Orange solid |
| Identification | Conforms to reference |
Storage & handling
| Property | Value |
|---|---|
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 90037999 |
| CAS Number | 2870-32-8 |
| IUPAC Name | disodium;5-[(4-ethoxyphenyl)diazenyl]-2-[(E)-2-[4-[(4-ethoxyphenyl)diazenyl]-2-sulfonatophenyl]ethenyl]benzenesulfonate |
| EC Number | 220-698-2 |
| Molecular Formula | C30H26N4Na2O8S2 |
| Molecular Weight | 680.7 |
| Exact Mass | 680.0987 |
| SMILES | CCOC1=CC=C(C=C1)N=NC2=CC(=C(C=C2)/C=C/C3=C(C=C(C=C3)N=NC4=CC=C(C=C4)OCC)S(=O)(=O)[O-])S(=O)(=O)[O-].[Na+].[Na+] |
| InChIKey | YQMJDPHTMKUEHG-ZNBXPSQRSA-L |
| InChI | InChI=1S/C30H28N4O8S2.2Na/c1-3-41-27-15-11-23(12-16-27)31-33-25-9-7-21(29(19-25)43(35,36)37)5-6-22-8-10-26(20-30(22)44(38,39)40)34-32-24-13-17-28(18-14-24)42-4-2;;/h5-20H,3-4H2,1-2H3,(H,35,36,37)(H,38,39,40);;/q;2*+1/p-2/b6-5+,33-31?,34-32?;; |
| PubChem CID | 6364585 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 3204.14.5000 |
| Tariff Code | 3204140090 |
Safety & GHS
Precautionary statements
- P280 Wear protective gloves/protective clothing/eye protection/face protection
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, 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
- Airedale Yellow CHD
- Aurophenine O
- C.I. Direct Yellow 12
- Chrome Leather Yellow CH
- Chrysophenine G
- Chrysophenine GP
- Chrysophenine J
- Chrysophenine NS
- Chrysophenine Y
- DIRECT YELLOW 12
Frequently asked questions
What is Chrysophenine commonly used for?
Chrysophenine is primarily used as a dye in textiles, leather, and paper industries, as well as in biological staining applications.
What is the chemical formula and molecular weight of Chrysophenine?
The chemical formula is C₃₀H₂₆N₄Na₂O₈S₂, and the molecular weight is 680.7 g/mol.
How should Chrysophenine be stored?
Store in a cool, dry place, away from direct sunlight and incompatible materials. Keep containers tightly sealed.
What grades or purity levels of Chrysophenine does Molekula supply?
Molekula supplies Chrysophenine in technical grade purity, suitable for industrial dyeing applications.
Can Molekula supply Chrysophenine in bulk quantities?
Yes, we offer Chrysophenine in bulk packaging (e.g., 25 kg drums or custom quantities) for large-scale industrial use.
What documentation comes with a Chrysophenine order?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and a product specification sheet.
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.