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77358-93-1

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77358-93-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77358-93-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,3,5 and 8 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 77358-93:
(7*7)+(6*7)+(5*3)+(4*5)+(3*8)+(2*9)+(1*3)=171
171 % 10 = 1
So 77358-93-1 is a valid CAS Registry Number.

77358-93-1Relevant articles and documents

Addition of Aldehydes to Activated Double Bonds, XXVIII. Preparations and Reactions of Alkoxy- and Acetoxy-2,5-diones

Stetter, Hermann,Mohrmann, Karl-Heinrich,Schlenker, Walter

, p. 581 - 596 (2007/10/02)

Thiazolium salt-catalyzed addition of aliphatic ether-aldehydes and pyrancarbaldehydes leads to corresponding 1-alkoxy-2,5-alkanediones 1-11 and pyranyl-1,4-alkanediones 28 - 47.In the same manner aldehydes react with 1-acetoxy-3-buten-2-one to give 1-acetoxy-2,5-alkanediones 12 - 19, which after saponification yield the 1-hydroxy-5-alkyl-2,5-pentanediones 20 - 27.

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