Methyl Red hydrochloride
Also known as: Methyl Red hydrochloride, Acid Red 2 hydrochloride, 2-[[4-(dimethylamino)phenyl]azo]benzoic acid monohydrochloride, 4-Dimethylaminoazobenzene-2'-carboxylic acid hydrochloride, C.I. 13020, 2-[4-(Dimethylamino)phenylazo]benzoic acid hydrochloride, o-[[p-(Dimethylamino)phenyl]azo]benzoic acid hydrochloride, 2-[(E)-[4-(dimethylamino)phenyl]diazenyl]benzoic acid hydrochloride
Methyl Red hydrochloride (CAS 63451-28-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C15H16ClN3O2 and a molecular weight of 305.76 g/mol. Key properties include a melting point of 175ºC (dec.)(lit.), a boiling point of 479.5ºC at 760 mmHg and a flash point of 243.8ºC. It is listed by 1 supplier, from 4.40 to 4.40 CNY per 500g. Record last updated Aug 21, 2026.
- CAS No.
- 63451-28-5
- Jingsj CID
- J-1079642-9
- Molecular Formula
- C15H16ClN3O2
- Molecular Weight
- 305.76 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
| Supplier | Purity / Pack | Base Price | Unit Price | Origin | |
|---|---|---|---|---|---|
Made to Order | 99% 500g | ¥2,200.00 | $0.66 /gBest ¥4.40/g CNY | CN China MOQ 500g |
Physicochemical Properties
| Melting Point | 175ºC (dec.)(lit.) |
|---|---|
| Boiling Point | 479.5ºC at 760 mmHg |
| Flash Point | 243.8ºC |
| Exact Mass | 305.09300 |
| PSA | 65.26000 |
| LogP | 4.66820 |
| SMILES | CN(C)C1=CC=C(C=C1)N=NC2=CC=CC=C2C(=O)O.Cl |
| InChIKey | ICTWKXAVJAHRMK-UHFFFAOYSA-N |
| InChI | 1S/C15H15N3O2.ClH/c1-18(2)12-9-7-11(8-10-12)16-17-14-6-4-3-5-13(14)15(19)20;/h3-10H,1-2H3,(H,19,20);1H |
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 Methyl Red hydrochloride?
The CAS number of Methyl Red hydrochloride is 63451-28-5.
What are the molecular formula and molecular weight of Methyl Red hydrochloride?
Methyl Red hydrochloride has molecular formula C15H16ClN3O2 and molecular weight 305.76 g/mol.
Which suppliers offer Methyl Red hydrochloride?
1 supplier(s) listed; reference unit price ¥4.40–4.40 /g.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Methyl Red hydrochloride (CAS 63451-28-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1079642-9 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.