Sudan II
Also known as: Solvent Orange 7, CI 12140, 1-(2,4-Xylylazo)-2-naphthol, 1-[(2,4-Dimethylphenyl)azo]-2-naphthalenol, FAT RED, Red B, Rot B, Sudan X, Waxakol Vermilion L
Sudan II (CAS 3118-97-6) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C18H16N2O and a molecular weight of 276.33 g/mol. Key properties include a melting point of 156-158ºC, a boiling point of 429.6±55.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 213.6±31.5 °C. It is listed by 1 supplier; request a quote for pricing. Record last updated Aug 21, 2026.
- CAS No.
- 3118-97-6
- Jingsj CID
- J-1106993-5
- Molecular Formula
- C18H16N2O
- Molecular Weight
- 276.33 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
| Supplier | Purity / Pack | Base Price | Unit Price | Origin | |
|---|---|---|---|---|---|
Made to Order | - | - | CN China |
Physicochemical Properties
| Melting Point | 156-158ºC |
|---|---|
| Boiling Point | 429.6±55.0 °C at 760 mmHg |
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 213.6±31.5 °C |
| Exact Mass | 276.126251 |
| PSA | 44.95000 |
| LogP | 4.56 |
| Vapor Pressure | 0.0±1.0 mmHg at 25°C |
| Refractive Index | 1.616 |
Customs & Trade Information
| HS Code | 2927000090 |
|---|---|
| Summary | 2927000090 other diazo-, azo- or azoxy-compounds。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Sudan II?
The CAS number of Sudan II is 3118-97-6.
What are the molecular formula and molecular weight of Sudan II?
Sudan II has molecular formula C18H16N2O and molecular weight 276.33 g/mol.
Which suppliers offer Sudan II?
1 supplier(s) listed; request a quote for pricing.
What are the upstream and downstream products of Sudan II?
For Sudan II, Upstream Products: m-Xylene, 2-Naphthylamine, 2,4-Dimethylaniline.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Sudan II (CAS 3118-97-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1106993-5 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.