Cobaltocene

Also known as: BIS(CYCLOPENTADIENYL)COBALT, Bis(cyclopentadienyl)cobalt, Bis(cyclopentadienyl)cobalt (II), (Cobaltocene), Bis(cyclopentadienyl)cobalt (II), 98+% (Cobaltocene), Bis(cyclopentadienyl)cobalt(II),min.98%(Cobaltocene), Bis(cyclopentadienyl)cobalt(Ⅱ), Cobaltocene SynonyMs Bis(cyclopentadienyl)cobalt, Cobaltocene,98%, CobaltoceneBis(cyclopentadienyl)cobalt, EINECS 215-061-0, MFCD00013749, cobaltocene, di(cyclopenta-1,3-dien-1-yl)cobalt

Cobaltocene (CAS 1277-43-6) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C10H10Co and a molecular weight of 189.12000 g/mol. Key properties include a melting point of 176-180 °C (dec.)(lit.) and a boiling point of 41.5ºC at 760 mmHg. It is classified under GHS with signal word Danger and hazard statements H228, H317 — May cause an allergic skin reaction and H334 — May cause allergy or asthma symptoms if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 1277-43-6
Jingsj CID: J-1325129-3
Molecular Formula: C₁₀H₁₀Co
Molecular Weight: 189.12000 g/mol
Category: Aliphatic Hydrocarbons
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	176-180 °C (dec.)(lit.)
Boiling Point	41.5ºC at 760 mmHg
Exact Mass	189.01100
LogP	2.04300

GHS Safety & Compliance

Flammable / Health HazardSignal word: Danger

H228
H317 — May cause an allergic skin reaction
H334 — May cause allergy or asthma symptoms if inhaled
H341 — Suspected of causing genetic defects
H351 — Suspected of causing cancer

Frequently Asked Questions

What is the CAS number of Cobaltocene?

The CAS number of Cobaltocene is 1277-43-6.

What are the molecular formula and molecular weight of Cobaltocene?

Cobaltocene has molecular formula C10H10Co and molecular weight 189.12000 g/mol.

Is Cobaltocene hazardous?

Cobaltocene has GHS signal word Danger and hazard statements H228; H317 — May cause an allergic skin reaction; H334 — May cause allergy or asthma symptoms if inhaled.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "Cobaltocene (CAS 1277-43-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1325129-3 (accessed 2026-11-06).

Data for reference only; verify product details with suppliers before purchase.