Alizarin Yellow R
Also known as: Mordant Orange 1, C.I. 14030, Alizarine Yellow R, Alizarol Orange R, Chrome Orange R, 2-Hydroxy-5-[(4-nitrophenyl)azo]benzoic Acid, 5-(4-Nitrophenylazo)salicylic Acid, p-Nitrobenzeneazosalicylic Acid, Benzoic acid, 2-hydroxy-5-[(E)-(4-nitrophenyl)diazenyl]-
Alizarin Yellow R (CAS 2243-76-7) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C13H9N3O5 and a molecular weight of 287.228 g/mol. Key properties include a melting point of 250°C, a boiling point of 571.4±50.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 299.4±30.1 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed and H319 — Causes serious eye irritation. It is listed by 1 supplier; request a quote for pricing. Record last updated Aug 21, 2026.
- CAS No.
- 2243-76-7
- Jingsj CID
- J-1990991-2
- Molecular Formula
- C13H9N3O5
- Molecular Weight
- 287.228 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 | 250°C |
|---|---|
| Boiling Point | 571.4±50.0 °C at 760 mmHg |
| Density | 1.5±0.1 g/cm3 |
| Flash Point | 299.4±30.1 °C |
| Exact Mass | 287.054230 |
| PSA | 128.07000 |
| LogP | 4.26 |
| Vapor Pressure | 0.0±1.7 mmHg at 25°C |
| Refractive Index | 1.672 |
| Additional Property | SOLUBLE |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H319 — Causes serious eye irritation
Activity & Biological Data
| Additional Information | [1]. Dhanush C, et al. Independent hydrothermal synthesis of the undoped, nitrogen, boron and sulphur doped biogenic carbon nanodots and their potential application in the catalytic chemo-reduction of Alizarine yellow R azo dye. Spectrochim Acta A Mol Biomol Spectrosc. 2021 Nov 5;260:119920. |
|---|
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 Alizarin Yellow R?
The CAS number of Alizarin Yellow R is 2243-76-7.
What are the molecular formula and molecular weight of Alizarin Yellow R?
Alizarin Yellow R has molecular formula C13H9N3O5 and molecular weight 287.228 g/mol.
Which suppliers offer Alizarin Yellow R?
1 supplier(s) listed; request a quote for pricing.
Is Alizarin Yellow R hazardous?
Alizarin Yellow R has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H319 — Causes serious eye irritation.
What are the upstream and downstream products of Alizarin Yellow R?
For Alizarin Yellow R, Upstream Products: 2-hydroxy-5-(phenyldiazenyl)benzoic acid, Salicylic acid; Downstream Products: 5-[(4-Aminophenyl)azo]salicylic acid, p-Phenylenediamine, 5-Aminosalicylic acid.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Alizarin Yellow R (CAS 2243-76-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1990991-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.