Methyltriphenylphosphonium chloride

三苯基甲基氯化膦

Also known as: Methyl(triphenyl)phosphonium chloride, Triphenylmethylchlorophosphine, PHOSPHONIUM,METHYLTRIPHENYL-,CHLORIDE, Phosphonium, methyltriphenyl-, chloride (1:1), TriPhenylMethylPhosphonium Chloride, methyl(triphenyl)phosphanium chloride, methyl(triphenyl)phosphanium,chloride, METHYL TRIPHENYL PHOSPHONIUM CHLORIDE MTPPC, METHYLTRIPHENYLPHOSPHONIUM CHLOR, [Ph3MP]Cl

Methyltriphenylphosphonium chloride (CAS 1031-15-8) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C19H18ClP and a molecular weight of 312.773 g/mol. It is also known as Methyl(triphenyl)phosphonium chloride, Triphenylmethylchlorophosphine and PHOSPHONIUM,METHYLTRIPHENYL-,CHLORIDE. Key property: a melting point of 221°C (dec.). It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed, H312 — Harmful in contact with skin and H315 — Causes skin irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1031-15-8
Jingsj CID
J-22230-9
Molecular Formula
C19H18ClP
Chinese Name
三苯基甲基氯化膦
Molecular Weight
312.773 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point221°C (dec.)
Exact Mass312.083466
PSA13.59000
LogP0.61430

GHS Safety & Compliance

Corrosion / Irritant / Environmental HazardSignal word: Danger
  • H302 — Harmful if swallowed
  • H312 — Harmful in contact with skin
  • H315 — Causes skin irritation
  • H318 — Causes serious eye damage
  • H411 — 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 Methyltriphenylphosphonium chloride?

The CAS number of Methyltriphenylphosphonium chloride is 1031-15-8.

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

Methyltriphenylphosphonium chloride has molecular formula C19H18ClP and molecular weight 312.773 g/mol.

Is Methyltriphenylphosphonium chloride hazardous?

Methyltriphenylphosphonium chloride has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H312 — Harmful in contact with skin; H315 — Causes skin irritation.

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

Last updated:

How to cite: Jingsj. "Methyltriphenylphosphonium chloride (CAS 1031-15-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-22230-9 (accessed 2026-10-28).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.