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125757-89-3

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125757-89-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 125757-89-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,5,7,5 and 7 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 125757-89:
(8*1)+(7*2)+(6*5)+(5*7)+(4*5)+(3*7)+(2*8)+(1*9)=153
153 % 10 = 3
So 125757-89-3 is a valid CAS Registry Number.

125757-89-3Relevant articles and documents

PUMMERER-LIKE REACTION OF SELENIUM(IV)-DICHLORIDES. SYNTHESIS OF α-CHLORO-α-PHENYLSELENENYLKETONES AND α,α-DICHLORO-α-PHENYLSELENENYLKETONES

Engman, Lars,Persson, Joachim,Tilstam, Ulf

, p. 2665 - 2668 (1989)

Selenium(IV)-dichlorides 1, readily available by treatment of methyl ketones with phenylselenium trichloride or selenium tetrachloride, were treated in methylene chloride with pyridine to give α-chloroselenides 2 in a Pummerer-like reaction.Sulfuryl chlor

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