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Trimethyltin chloride

Also known as: Trimethylchlorotin, Chlorotrimethylstannane, Chlorotrimethyltin, (CH3)3SnCl, Me3SnCl, Trimethylstannyl chloride, Trimethyltin monochloride

Trimethyltin chloride (CAS 1066-45-1) is a compound in the Organohalogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C3H9ClSn and a molecular weight of 199.267 g/mol. Key properties include a melting point of 37-39 °C(lit.), a boiling point of 95.8±23.0 °C at 760 mmHg, a density of 0.988 g/mL at 25 °C and a flash point of 11.8±22.6 °C. It is classified under GHS with signal word Danger and hazard statements H300, H310 and H330 — Fatal if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1066-45-1
Jingsj CID
J-48661-5
Molecular Formula
C3H9ClSn
Molecular Weight
199.267 g/mol
Category
Organohalogen Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point37-39 °C(lit.)
Boiling Point95.8±23.0 °C at 760 mmHg
Density0.988 g/mL at 25 °C
Flash Point11.8±22.6 °C
Exact Mass199.941483
LogP-0.93
Vapor Pressure51.1±0.2 mmHg at 25°C

GHS Safety & Compliance

Acute Toxicity / Environmental HazardSignal word: Danger
  • H300
  • H310
  • H330 — Fatal if inhaled
  • H410 — Very toxic to aquatic life with long lasting effects

Customs & Trade Information

HS Code2931900090
Summary2931900090. other organo-inorganic compounds. VAT:17.0%. Tax rebate rate:13.0%. Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward). MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Trimethyltin chloride?

The CAS number of Trimethyltin chloride is 1066-45-1.

What are the molecular formula and molecular weight of Trimethyltin chloride?

Trimethyltin chloride has molecular formula C3H9ClSn and molecular weight 199.267 g/mol.

Is Trimethyltin chloride hazardous?

Trimethyltin chloride has GHS signal word Danger and hazard statements H300; H310; H330 — Fatal if inhaled.

What are the upstream and downstream products of Trimethyltin chloride?

For Trimethyltin chloride, Upstream Products: Chloromethane, Tetramethyltin, Tin(IV) chloride; Downstream Products: Hexamethyldistannane, (Dimethylamino)trimethyltin.

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

Last updated:

How to cite: Jingsj. "Trimethyltin chloride (CAS 1066-45-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-48661-5 (accessed 2026-11-06).

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