4-Aminophenol hydrochloride
Also known as: p-Aminophenol hydrochloride, 4-Hydroxyaniline hydrochloride, 4-Hydroxyanilinium chloride, C.I. 76551, FurBrownp, Fouramine CP, Fourrine 83, Fourrine P, Futramine P, Pelagol CP, Durafur Brown R
4-Aminophenol hydrochloride (CAS 51-78-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H8ClNO and a molecular weight of 145.58700 g/mol. Key properties include a melting point of 302 °C, a boiling point of 282ºC at 760mmHg, a density of 1.21g/cm3 and a flash point of 124.3ºC. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H317 — May cause an allergic skin reaction and H319 — Causes serious eye irritation. It is listed by 2 suppliers, from 1.16 to 1.60 CNY. Record last updated Aug 21, 2026.
- CAS No.
- 51-78-5
- Jingsj CID
- J-1340404-6
- Molecular Formula
- C6H8ClNO
- Molecular Weight
- 145.58700 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
| Supplier | Purity / Pack | Base Price | Unit Price | Origin | |
|---|---|---|---|---|---|
In Stock | 99% 500g | ¥580.00 | $0.17 /gBest ¥1.16/g CNY | CN China MOQ 500g | |
In Stock | 99% 100g | ¥128.00 | $0.19 /g ¥1.28/g CNY | CN China MOQ 100g | |
In Stock | 99% 500g | ¥670.00 | $0.2 /g ¥1.34/g CNY | CN China MOQ 500g |
Physicochemical Properties
| Melting Point | 302 °C |
|---|---|
| Boiling Point | 282ºC at 760mmHg |
| Density | 1.21g/cm3 |
| Flash Point | 124.3ºC |
| Exact Mass | 145.02900 |
| PSA | 46.25000 |
| LogP | 2.35760 |
| Additional Property | soluble |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H317 — May cause an allergic skin reaction
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2922299090 |
|---|---|
| Summary | 2922299090. other amino-naphthols and other amino-phenols, other than those containing more than one kind of oxygen function, their ethers and esters; salts thereof. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 4-Aminophenol hydrochloride?
The CAS number of 4-Aminophenol hydrochloride is 51-78-5.
What are the molecular formula and molecular weight of 4-Aminophenol hydrochloride?
4-Aminophenol hydrochloride has molecular formula C6H8ClNO and molecular weight 145.58700 g/mol.
Which suppliers offer 4-Aminophenol hydrochloride?
2 supplier(s) listed; reference unit price ¥1.16–1.60 /g.
Is 4-Aminophenol hydrochloride hazardous?
4-Aminophenol hydrochloride has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H317 — May cause an allergic skin reaction; H319 — Causes serious eye irritation.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-Aminophenol hydrochloride (CAS 51-78-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1340404-6 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.