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56772-77-1

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56772-77-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 56772-77-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,6,7,7 and 2 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 56772-77:
(7*5)+(6*6)+(5*7)+(4*7)+(3*2)+(2*7)+(1*7)=161
161 % 10 = 1
So 56772-77-1 is a valid CAS Registry Number.

56772-77-1Downstream Products

56772-77-1Relevant articles and documents

Simple synthesis of 2-alkenyl- and 2-aryl-substituted 1,1-dichloroethylenes from unsaturated aldehydes

Zhdankina,Kryshtal',Serebryakov,Yanovskaya

, p. 2589 - 2591 (1989)

A three-step synthesis has been proposed for the preparation of 2-alkenyl- and 2-aryl-1,1-dichloroethylenes, involving the conversion of an aldehyde to its acylal (or α-trichloromethylcarbinol), α-trichloromethylcarbinol acetate, and 2-substituted 1,1-dichloro-olefin. The best procedure for the dechloroacetoxylation by the action of zinc powder in a mixture of acetic acid and ether.

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