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(Methoxymethyl)triphenylphosphonium chloride

CAS No.
4009-98-7
Chemical Name:
(Methoxymethyl)triphenylphosphonium chloride
Synonyms
MMC;MTPPC;DOMIT-012;AURORA KA-1153;(MethoxymethyL;phosphonium chL;Methoxymethyl triphe;METHOXYMETHYL-TRIPHENYLPHOSPHONIUM-;Triphenyl(methoxymethyl)phosphonium;methoxymethyl(triphenyl)phosphanium
CBNumber:
CB3455456
Molecular Formula:
C20H20ClOP
Molecular Weight:
342.8
MDL Number:
MFCD00011800
MOL File:
4009-98-7.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-05-28 06:32:16

(Methoxymethyl)triphenylphosphonium chloride Properties

Melting point 185-195 °C (dec.)(lit.)
bulk density 450-500kg/m3
vapor pressure <1 hPa ( 20 °C)
Flash point >250°C
storage temp. Store below +30°C.
solubility >1100g/l soluble,(decomposition)
form Crystalline Powder
color White to almost white
PH 2.2 (1100g/l, H2O, 20℃)
Water Solubility decomposes
Sensitive Hygroscopic
BRN 924215
InChI 1S/C20H20OP.ClH/c1-21-17-22(18-11-5-2-6-12-18,19-13-7-3-8-14-19)20-15-9-4-10-16-20;/h2-16H,17H2,1H3;1H/q+1;/p-1
InChIKey SJFNDMHZXCUXSA-UHFFFAOYSA-M
SMILES [Cl-].COC[P+](c1ccccc1)(c2ccccc2)c3ccccc3
LogP -1.17
CAS DataBase Reference 4009-98-7(CAS DataBase Reference)
UNSPSC Code 12352107
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)Environment (GHS09)
GHS07,GHS09
Signal word  Warning
Hazard statements  H302-H315-H319-H411
Precautionary statements  P264-P270-P273-P301+P312-P302+P352-P305+P351+P338
PPE dust mask type N95 (US), Eyeshields, Gloves
Hazard Codes  Xn,Xi
Risk Statements  22-36/37/38
Safety Statements  26-36-24/25
RIDADR  UN 1390 4.3/PG 2
WGK Germany  3
3-10
Hazard Note  Harmful
HS Code  29310095
Storage Class 11 - Combustible Solids
Hazard Classifications Acute Tox. 4 Oral
Aquatic Chronic 2
Eye Irrit. 2
Skin Irrit. 2
REACH Registrations Active
NFPA 704
1
2 1

(Methoxymethyl)triphenylphosphonium chloride price More Price(71)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 309567 (Methoxymethyl)triphenylphosphonium chloride 97% 4009-98-7 25g $69.4 2026-04-30 Buy
Sigma-Aldrich 8.18580 Methoxymethyl-triphenylphosphonium chloride for synthesis 4009-98-7 50G $110 2026-04-30 Buy
Sigma-Aldrich 309567 (Methoxymethyl)triphenylphosphonium chloride 97% 4009-98-7 100g $144 2026-04-30 Buy
TCI Chemical M0828 (Methoxymethyl)triphenylphosphonium Chloride >99.0%(HPLC) 4009-98-7 25g $24 2026-04-30 Buy
TCI Chemical M0828 (Methoxymethyl)triphenylphosphonium Chloride >99.0%(HPLC) 4009-98-7 100g $68 2026-04-30 Buy
Product number Packaging Price Buy
309567 25g $69.4 Buy
8.18580 50G $110 Buy
309567 100g $144 Buy
M0828 25g $24 Buy
M0828 100g $68 Buy

(Methoxymethyl)triphenylphosphonium chloride Chemical Properties, Uses, Production

Chemical Properties

WHITE TO ALMOST WHITE FINE CRYSTALLINE POWDER

Uses

PTC catalyst

Uses

(Methoxymethyl)triphenylphosphonium chloride is used as a phase transfer catalyst and in the synthesis of taxol-A fragment. It is widely used in the synthesis of pharmaceutical product cephalotaxine, which is used as an antiviral and antitumor agent.

Uses

Intermediates of Liquid Crystals

reaction suitability

reaction type: C-C Bond Formation

Synthesis

Chloromethyl methyl ether

107-30-2

Triphenylphosphine

603-35-0

(Methoxymethyl)triphenylphosphonium chloride

4009-98-7

The general procedure for the synthesis of (methoxymethyl)triphenylphosphonium chloride from chloromethyl methyl ether and triphenylphosphine was as follows: 20.0 g of triphenylphosphine was placed in a round-bottomed flask, dissolved in an appropriate amount of toluene, and heated to 95°C. The reaction was carried out at a constant temperature for 16 hours. Subsequently, 6.37 mL of chloromethyl methyl ether was slowly added dropwise and the reaction was kept at temperature for 16 hours. Upon completion of the reaction, the reaction mixture was cooled to room temperature and the solid product was collected by filtration. The filter cake was washed three times with toluene to remove impurities and then dried to give 25.4 g of white phosphonium salt in 97.3% yield.

References

[1] Synthesis (Germany), 2013, vol. 45, # 5, p. 596 - 600
[2] Patent: CN107936009, 2018, A. Location in patent: Paragraph 0042; 0087-0088
[3] Bulletin of the Chemical Society of Japan, 1980, vol. 53, # 12, p. 3436 - 3438
[4] Patent: CN106588982, 2017, A. Location in patent: Paragraph 0008; 0017; 0018; 0019; 0020; 0021; 0022-0025
[5] Journal of the American Chemical Society, 1976, vol. 98, p. 6613 - 6623

Global Suppliers ( 426)
Supplier Tel Email Country ProdList Advantage
Nanjing Yihua Biotechnology Co., Ltd 13429882898; 13429882898 1096323105@qq.com China 291 58
Shouguang Jiasheng Chemical Co., Ltd. 0536-7971999 13583611556 sgjiasheng@hotmail.com China 300 58
Nanjing Dilu Pharmaceutical Co., Ltd 18014482516 18014482516 977144864@qq.com China 424 58
Hebei Han'en New Material Technology Co., Ltd 18032751346 2929218726@qq.com China 27 58
J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
Meryer (Shanghai) Chemical Technology Co., Ltd. 4006356688 18621169109 market03@meryer.com China 40202 62
Beijing Donghualituo Techonlogy Development Co.,Ltd. 010-88425576 sales@dhltchem.com China 793 59
INTATRADE GmbH +49 3493/605464 sales@intatrade.de Germany 3563 66
3B Pharmachem (Wuhan) International Co.,Ltd. 18930552037 3bsc@sina.com China 15813 69
Alfa Aesar 400-6106006 saleschina@alfa-asia.com China 30103 84

View Latest Price from (Methoxymethyl)triphenylphosphonium chloride manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
(Methoxymethyl)triphenylphosphonium chloride pictures 2026-09-20 (Methoxymethyl)triphenylphosphonium chloride
4009-98-7
1KG 98%min 30tons/month WUHAN FORTUNA CHEMICAL CO., LTD
	(Methoxymethyl)triphenylphosphonium chloride pictures 2026-09-02 (Methoxymethyl)triphenylphosphonium chloride
4009-98-7
$1.00-100.00 1KG 99% Henan Fengda Chemical Co., Ltd
(Methoxymethyl)triphenylphosphonium chloride pictures 2026-03-20 (Methoxymethyl)triphenylphosphonium chloride
4009-98-7
$10.00 1KG 99% 10 mt Hebei Chuanghai Biotechnology Co., Ltd
AURORA KA-1153 (METHOXYMETHYL)TRIPHENYLPHOSPHONIUM CHLORIDE METHOXYMETHYL-TRIPHENYLPHOSPHONIUM- [1aS-(1aa,8b,8aa,8ba)-6-Amino-8-[[(aminocarbonyl)oxy]methyl]-1,1a,2,8,8a,8b-hexahydro-8a-methoxy-5-methylazirino[2,3,4]pyrrolo[1,2-a]indole-4,7-dione Phosphonium, (methoxymethyl)triphenyl-, chloride METHOXY METHYL TRIPHENYL PHOSPHONIUM CHLORIDE LOW WATER (METHOXYMETHYL)TRIPHENYLPHOSPHONIUM CHLORIDE, 98+% Triphenyl(methoxymethyl)phosphonium Triphenyl(methoxymethyl)phosphonium·chloride Methoxymethyl triphe (Methoxymethyl)triphenylphosphonium chloride ,97.5% (Methoxymethyl)tris(phenyl)phosphonium chloride Methoxymethyl-triphenylphosphomium Chloride PhosphoniuM,(MethoxyMethyl)triphenyl-, chloride (1:1) (MethoxyMethyl)triphenylphosphoniuM chloride 97% (MethoxyMethyl)triphenylphosphoniuM chloride, 97.5%, 97.5% Methoxymethyl-triphenylphosphanium chloride (Methoxymethyl)triphenylphodphonium Chloride [1aS-(1aa,8b,8aa,8ba)-6-Amino-8-[[(aminocarbonyl)oxy]methyl]-1,1a,2,8,8a,8b-hexahydro-8a-methoxy-5-m DOMIT-012 (MethoxymethyL phosphonium chL (Methoxymethyl)triphenylphosphonium Chloride > (Methoxymethyl)triphenylphosphonium chloride, 97.5%, for synthesis (Methoxymethyl)Triphenylphosphonium Chloride,>99% METHOXYMETHYL-TRIPHENYLPHOSPHONIUM CHLOR (METOXMETHYL) TRIPHENYL PHOSPHONIUM CHLORIDE Methoxy methyl triphenyl phosphorus chloride Methoxy methyl triphenylphosphine chloride (Methoxymethyl) triphenyl phosphonium Chloride Solid methoxymethyl(triphenyl)phosphanium (Methoxymethyl)triphenylphosphonium chloride (6CI, 7CI) Triphenylphosphine chloromethyl ether (Methoxymethyl)triphenylphosphonium Chloride(TPP-MOC) MMC MTPPC 4009-98-7 10399-39-2 C20H20OClP C20H20ClOP CH3OCH2PC6H53Cl C6H53PClCH2OCH3 C-C Bond Formation Wittig Reaction Phosphonium Compounds Wittig & Horner-Emmons Reaction Olefination Synthetic Reagents Wittig Reagents Phosphonium Compounds Synthetic Organic Chemistry Wittig & Horner-Emmons Reaction Wittig Reaction C-C Bond Formation Olefination Wittig Reagents