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408318-32-1

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408318-32-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 408318-32-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,8,3,1 and 8 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 408318-32:
(8*4)+(7*0)+(6*8)+(5*3)+(4*1)+(3*8)+(2*3)+(1*2)=131
131 % 10 = 1
So 408318-32-1 is a valid CAS Registry Number.

408318-32-1Relevant articles and documents

The Effect of the Structure of Substartes and Reaction Conditions on the Preparation of Acetylene 1,4-diols. II. Two-stage Syntheses

Olejnik, Marian,Jasiobedzki, Wieslaw,Pograniczna-Ramza, Maryla

, p. 467 - 473 (2007/10/02)

Twelve reactions of the preparation of asymmetric acetylene 1,4-diols have been carried out (Scheme I).A significant effect of the structure of initial ketone and the reaction conditions on the preparation of diols has been found in the first stage of the synthesis (prepartion of acetylene carbinol).For R1 or R2 = p-CH3OC6H4 products of dehydration of the dils have been obtained.

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