3,4-Dihydroxybenzonitrile
3,4-二羟基苯甲腈
Also known as: 4-Cyanocatechol, 4-Cyanopyrocatechol, Protocatechuonitrile, Benzonitrile, 3,4-dihydroxy-, 4-Cyano-1,2-dihydroxybenzene
3,4-Dihydroxybenzonitrile (CAS 17345-61-8) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C7H5NO2 and a molecular weight of 135.120 g/mol. It is also known as 4-Cyanocatechol, 4-Cyanopyrocatechol and Protocatechuonitrile. Key properties include a melting point of 155-159 °C(lit.), a boiling point of 334.8±32.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 156.3±25.1 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 17345-61-8
- Jingsj CID
- J-48049-5
- Molecular Formula
- C7H5NO2
- Chinese Name
- 3,4-二羟基苯甲腈
- Molecular Weight
- 135.120 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 155-159 °C(lit.) |
|---|---|
| Boiling Point | 334.8±32.0 °C at 760 mmHg |
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 156.3±25.1 °C |
GHS Safety & Compliance
Frequently Asked Questions
What is the CAS number of 3,4-Dihydroxybenzonitrile?
The CAS number of 3,4-Dihydroxybenzonitrile is 17345-61-8.
What are the molecular formula and molecular weight of 3,4-Dihydroxybenzonitrile?
3,4-Dihydroxybenzonitrile has molecular formula C7H5NO2 and molecular weight 135.120 g/mol.
Is 3,4-Dihydroxybenzonitrile hazardous?
3,4-Dihydroxybenzonitrile has GHS signal word Warning.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3,4-Dihydroxybenzonitrile (CAS 17345-61-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-48049-5 (accessed 2026-10-22).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.