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O-Ethyl-S-hexylphenylthiophosphonat is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

57557-84-3

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57557-84-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 57557-84-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,5,5 and 7 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 57557-84:
(7*5)+(6*7)+(5*5)+(4*5)+(3*7)+(2*8)+(1*4)=163
163 % 10 = 3
So 57557-84-3 is a valid CAS Registry Number.

57557-84-3Downstream Products

57557-84-3Relevant academic research and scientific papers

THE ISOMERIZATION/CHLORINATION OF O,O-DIALKYL PHENYLTHIOPHOSPHONATES WITH PHOSPHORUS OXYCHLORIDE - A NEW CONVENIENT SYNTHESIS OF S-ALKYL PHENYLTHIOPHOSPHONIC ACID DERIVATIVES

Tang, Chu Chi,Wu, Gui Ping,Huang, Guang Yan,Li, Zhen,Jin, Gui Yu

, p. 159 - 164 (2007/10/02)

A new method for the synthesis of S-alkyl phenylthiophosphonic acid derivatives is reported.The chlorination of O,O-dialkyl phenylthiophosphonates with phosphorus oxychloride proceeds with isomerization to give S-alkyl phenylthiophosphonochloridates, which react further with various nucleophiles in the presence of triethylamine to give the title compounds.Key words: Phosphonothionate; phosphonothiolate; phosphonodithiolate; phosphonamidethiolate; isomerization; chlorination.

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