1,5-Dicyanopentane
Also known as: Heptanedinitrile, Pimelonitrile, 1,7-Heptanedinitrile, Pentamethylene dicyanide, Pimelic acid dinitrile, Heptandinitril, MFCD00001980, NSC 5392
1,5-Dicyanopentane (CAS 646-20-8) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C7H10N2 and a molecular weight of 122.168 g/mol. Key properties include a melting point of -31.4ºC, a boiling point of 310.8±0.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 143.4±16.5 °C. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed, H312 — Harmful in contact with skin and H332 — Harmful if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 646-20-8
- Jingsj CID
- J-23593-8
- Molecular Formula
- C7H10N2
- Molecular Weight
- 122.168 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -31.4ºC |
|---|---|
| Boiling Point | 310.8±0.0 °C at 760 mmHg |
| Density | 0.9±0.1 g/cm3 |
| Flash Point | 143.4±16.5 °C |
| Exact Mass | 122.084396 |
| PSA | 47.58000 |
| LogP | -0.06 |
| Vapor Pressure | 0.0±0.6 mmHg at 25°C |
| Refractive Index | 1.437 |
GHS Safety & Compliance
- H301 — Toxic if swallowed
- H312 — Harmful in contact with skin
- H332 — Harmful if inhaled
Customs & Trade Information
| HS Code | 2926909090 |
|---|---|
| Summary | HS:2926909090 other nitrile-function compounds VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 1,5-Dicyanopentane?
The CAS number of 1,5-Dicyanopentane is 646-20-8.
What are the molecular formula and molecular weight of 1,5-Dicyanopentane?
1,5-Dicyanopentane has molecular formula C7H10N2 and molecular weight 122.168 g/mol.
Is 1,5-Dicyanopentane hazardous?
1,5-Dicyanopentane has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H312 — Harmful in contact with skin; H332 — Harmful if inhaled.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1,5-Dicyanopentane (CAS 646-20-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-23593-8 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.