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139488-88-3

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139488-88-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 139488-88-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,4,8 and 8 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 139488-88:
(8*1)+(7*3)+(6*9)+(5*4)+(4*8)+(3*8)+(2*8)+(1*8)=183
183 % 10 = 3
So 139488-88-3 is a valid CAS Registry Number.

139488-88-3Downstream Products

139488-88-3Relevant articles and documents

REGIOSELECTIVITY OF ADDITION OF PHOSPHORYLSULFENYL CHLORIDES TO ARYLETHYLENES

Kutyrev, G. A.,Sadykova, L. A.,Cherkasov, R. A.

, p. 1821 - 1825 (2007/10/02)

The factors that control the regioselective addition of phosphorylsulfenyl chlorides to arylethylenes are the electronic effect of the substituent in the unsaturated compound and the steric effect of the alkoxy groups on the phosphorus of the electrophile.An AdE2 scheme is proposed that includes the formation by parallel routes of cyclic intermediates, in the stabilization of which the phosphorus group of the sulfenyl chloride participates.

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