Home > Organophosphorus Compounds> 2,4-dimethyl-2,4-bis(sulfanylidene)-1,3,2λ5,4λ5-dithiadiphosphetane

2,4-dimethyl-2,4-bis(sulfanylidene)-1,3,2λ5,4λ5-dithiadiphosphetane

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Origin: China

Cas No: 1121-81-9

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 80 mt/month

Lead time: 7 days for OEM, 3 days for ready goods

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CAS No.: 1121-81-9 Formula: C2H6P2S4 Molecular Weight: 220.27700

Basic Info

Chemical Name	2,4-dimethyl-2,4-bis(sulfanylidene)-1,3,2λ<sup>5</sup>,4λ<sup>5</sup>-dithiadiphosphetane
Synonyms	2,4-bis(methyl)-1,3-dithia-2,4-diphosphetane-2,4-disulfide; Methyldithiophosphonic acid anhydride dimer; methyldithiophosphonic acid anhydride; Dithiomethylphosphonsaeureanhydrid; 2,4-dimethyl-1,3,2,4-dithiadiphosphetane 2,4-disulfide; Methandithiophosphonsaeure-dianhydrid; Methadithiophosphonsaeure-methylester; 2,4-dimethyl-cyclodiphosphathiane 2,4-disulfide;
CAS No.	1121-81-9
Molecular Formula	C2H6P2S4
Molecular Weight	220.27700
PSA	134.40000
LogP	4.64620

Properties

Density	1.57g/cm3
Boiling Point	287.7ºC at 760mmHg
Flash Point	127.8ºC
Refractive Index	1.679
Vapor Pressure	0.00423mmHg at 25°C

Synthesis Route

dichloro-methyl-sulfanylidene-λ5-phosphane→2,4-dimethyl-2,4-bis(sulfanylidene)-1,3,2λ5,4λ5-dithiadiphosphetane
hydrogen sulfide+dichloro-methyl-sulfanylidene-λ5-phosphane→2,4-dimethyl-2,4-bis(sulfanylidene)-1,3,2λ5,4λ5-dithiadiphosphetane

Precursor

hydrogen sulfide
dichloro-methyl-sulfanylidene-λ5-phosphane

Downstream Product

methoxy-methyl-sulfanylidene-sulfido-λ5-phosphane
2,2,3,3,4,4,4-heptafluorobutoxy-methyl-oxido-sulfanylidene-λ5-phosphane

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