2-thienyllithium
Also known as: 2-Lithiothiophene, thienyllithium, 2-thienylLi, lithium thiophen-2-ide, thiophen-2-yllithium, lithium 2H-thiophen-2-ide
2-thienyllithium (CAS 2786-07-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C4H3LiS and a molecular weight of 90.07260 g/mol. Key properties include a density of 0.829 g/mL at 25ºC and a flash point of -30.0 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour, H302 — Harmful if swallowed and H332 — Harmful if inhaled. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.
- CAS No.
- 2786-07-4
- Jingsj CID
- J-518-4
- Molecular Formula
- C4H3LiS
- Molecular Weight
- 90.07260 g/mol
- Category
- Pharma Intermediates
- Last updated
- 11/2/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Density | 0.829 g/mL at 25ºC |
|---|---|
| Flash Point | -30.0 °C |
| Exact Mass | 90.01160 |
| PSA | 28.24000 |
| LogP | 1.54830 |
GHS Safety & Compliance
- H225 — Highly flammable liquid and vapour
- H302 — Harmful if swallowed
- H332 — Harmful if inhaled
- H304
- H314 — Causes severe skin burns and eye damage
- H335 — May cause respiratory irritation
- H336 — May cause drowsiness or dizziness
- H351 — Suspected of causing cancer
- H373 — May cause damage to organs through prolonged exposure
- H411 — Toxic to aquatic life with long lasting effects
Customs & Trade Information
| HS Code | 2934999090 |
|---|---|
| Summary | 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of 2-thienyllithium?
The CAS number of 2-thienyllithium is 2786-07-4.
What are the molecular formula and molecular weight of 2-thienyllithium?
2-thienyllithium has molecular formula C4H3LiS and molecular weight 90.07260 g/mol.
Is 2-thienyllithium hazardous?
2-thienyllithium has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H302 — Harmful if swallowed; H332 — Harmful if inhaled.
What are the upstream and downstream products of 2-thienyllithium?
For 2-thienyllithium, Upstream Products: n-Butyllithium, 2-Bromothiophene; Downstream Products: 2-(2-Thienyl)pyridine, 2-Fluorothiophene, 2,2'-Bithiophene.
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-thienyllithium (CAS 2786-07-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-518-4 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.