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253200-54-3

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253200-54-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 253200-54-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,3,2,0 and 0 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 253200-54:
(8*2)+(7*5)+(6*3)+(5*2)+(4*0)+(3*0)+(2*5)+(1*4)=93
93 % 10 = 3
So 253200-54-3 is a valid CAS Registry Number.

253200-54-3Downstream Products

253200-54-3Relevant articles and documents

Enantioselective protonation of lithium enolates with chiral imides possessing a chiral amide

Yanagisawa, Akira,Kikuchi, Tetsuo,Watanabe, Tsuyoshi,Yamamoto, Hisashi

, p. 2337 - 2343 (1999)

New chiral imides possessing a chiral amide can be prepared from 1,3,5- trimethyl-r-1,c-3,c-5-cyclohexanetricarboxylic acid or related triacids and optically active amines. These imides are superior to 1,3,5-trimethyl-c- 5[(4S,5S)-4,5-diphenyl-2-oxazolin-2-yl]-r-1,c-3-cyclohexanedicarboximide reported previously as a chiral proton source for enantioselective protonation of lithium enolates of 2-alkylcycloalkanones.

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