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39165-55-4

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39165-55-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 39165-55-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,9,1,6 and 5 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 39165-55:
(7*3)+(6*9)+(5*1)+(4*6)+(3*5)+(2*5)+(1*5)=134
134 % 10 = 4
So 39165-55-4 is a valid CAS Registry Number.

39165-55-4Downstream Products

39165-55-4Relevant articles and documents

Selective Oxidation of Unsymmetrical Thiosulfinic S-Esters to the Corresponding Thiosulfonic S-Esters with NaIO4

Takata, Toshikazu,Kim, Yong Hae,Oae, Shigeru

, p. 1443 - 1447 (1981)

Unsymmetrical thiosulfinic S-esters were oxidized with sodium metaperiodate in aqueous media to the corresponding unsymmetrical thiosulfonic S-esters nearly quantitatively.The oxidation was accelerated by addition of a catalytic amount of inorganic and organic acids or halogen.Sulfinic esters were produced competitively along with the thiosulfonic S-esters in the oxidation of thiosulfinic S-esters in aqueous alcohol.However, unsymmetrical disulfides were not oxidized selectively to the corresponding unsymmetrical thiosufonic S-esters but a mixture of the both symmetrical and unsymmetrical thiosulfonic S-esters was obtained.

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