2,4-Diaminophenol dihydrochloride
Also known as: Amidol, 2,4-Diaminophenol hydrochloride, 4-Hydroxy-m-phenylenediamine dihydrochloride, Acrol, Dianol, NCI-C60026, Phenol,2,4-diamino-,dihydrochloride, 1-HYDROXYBENZENE-2,4-DIAMMONIUM DICHLORIDE
2,4-Diaminophenol dihydrochloride (CAS 137-09-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H10Cl2N2O and a molecular weight of 197.062 g/mol. Key properties include a melting point of 222 °C (dec.)(lit.), a boiling point of 347.4ºC at 760 mmHg, a density of 1.343 g/cm3 and a flash point of 163.9ºC. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed, H315 — Causes skin irritation and H319 — Causes serious eye irritation. It is listed by 2 suppliers, 1 of which publish reference prices, from 2.72 to 4.80 CNY. Record last updated Aug 21, 2026.
- CAS No.
- 137-09-7
- Jingsj CID
- J-1965155-2
- Molecular Formula
- C6H10Cl2N2O
- Molecular Weight
- 197.062 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
| Supplier | Purity / Pack | Base Price | Unit Price | Origin | |
|---|---|---|---|---|---|
In Stock | 98% 500g | ¥1,360.00 | $0.41 /gBest ¥2.72/g CNY | CN China MOQ 500g | |
In Stock | 98% 100g | ¥460.00 | $0.69 /g ¥4.60/g CNY | CN China MOQ 100g | |
In Stock | 98% 25g | ¥120.00 | $0.72 /g ¥4.80/g CNY | CN China MOQ 25g |
Physicochemical Properties
| Melting Point | 222 °C (dec.)(lit.) |
|---|---|
| Boiling Point | 347.4ºC at 760 mmHg |
| Density | 1.343 g/cm3 |
| Flash Point | 163.9ºC |
| Exact Mass | 196.017014 |
| PSA | 72.27000 |
| LogP | 3.32300 |
| Vapor Pressure | 2.68E-05mmHg at 25°C |
| Stability | Stable. Incompatible with strong oxidizing agents, acids. Heat and light sensitive. |
| Additional Property | 27.5 g/100 mL (15 ºC) |
GHS Safety & Compliance
- H301 — Toxic if swallowed
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2923900090 |
|---|---|
| Summary | 2923900090 other quaternary ammonium salts and hydroxides。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 2,4-Diaminophenol dihydrochloride?
The CAS number of 2,4-Diaminophenol dihydrochloride is 137-09-7.
What are the molecular formula and molecular weight of 2,4-Diaminophenol dihydrochloride?
2,4-Diaminophenol dihydrochloride has molecular formula C6H10Cl2N2O and molecular weight 197.062 g/mol.
Which suppliers offer 2,4-Diaminophenol dihydrochloride?
2 supplier(s) listed; reference unit price ¥2.72–4.80 /g.
Is 2,4-Diaminophenol dihydrochloride hazardous?
2,4-Diaminophenol dihydrochloride has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H315 — Causes skin irritation; H319 — Causes serious eye irritation.
What are the upstream and downstream products of 2,4-Diaminophenol dihydrochloride?
For 2,4-Diaminophenol dihydrochloride, Downstream Products: 2-(2-Bromophenyl)benzoxazol-5-amine, 2-(3-aminophenyl)-1,3-benzoxazol-5-amine, 5-Amino-2-(4-aminophenyl)benzoxazole.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2,4-Diaminophenol dihydrochloride (CAS 137-09-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1965155-2 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.