1,3-Phenylene diisothiocyanate
Also known as: Benzene, 1,3-diisothiocyanato-, 1,3-Diisothiocyanatobenzene, m-Phenylene diisothiocyanate, Isothiocyanic acid, m-phenylene ester, 1,3-Phenylenebisisothiocyanate, MFCD01716878
1,3-Phenylene diisothiocyanate (CAS 3125-77-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H4N2S2 and a molecular weight of 192.26100 g/mol. Key properties include a melting point of 56ºC (dec.)(lit.), a boiling point of 358.8ºC at 760mmHg, a density of 1.2g/cm3 and a flash point of 180.8ºC. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed, H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 3125-77-7
- Jingsj CID
- J-46474-4
- Molecular Formula
- C8H4N2S2
- Molecular Weight
- 192.26100 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 56ºC (dec.)(lit.) |
|---|---|
| Boiling Point | 358.8ºC at 760mmHg |
| Density | 1.2g/cm3 |
| Flash Point | 180.8ºC |
| Exact Mass | 191.98200 |
| PSA | 88.90000 |
| LogP | 3.15520 |
| Refractive Index | 1.6000 (estimate) |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H334 — May cause allergy or asthma symptoms if inhaled
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2930909090 |
|---|---|
| Summary | 2930909090. other organo-sulphur compounds. 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 1,3-Phenylene diisothiocyanate?
The CAS number of 1,3-Phenylene diisothiocyanate is 3125-77-7.
What are the molecular formula and molecular weight of 1,3-Phenylene diisothiocyanate?
1,3-Phenylene diisothiocyanate has molecular formula C8H4N2S2 and molecular weight 192.26100 g/mol.
Is 1,3-Phenylene diisothiocyanate hazardous?
1,3-Phenylene diisothiocyanate has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H319 — Causes serious eye irritation.
What are the upstream and downstream products of 1,3-Phenylene diisothiocyanate?
For 1,3-Phenylene diisothiocyanate, Upstream Products: Thiophosgene, m-Phenylenediamine, 1,1'-Thiocarbonyldi-2(1H)-pyridone; Downstream Products: Isophthalonitrile.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1,3-Phenylene diisothiocyanate (CAS 3125-77-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-46474-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.