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804563-07-3

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804563-07-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 804563-07-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,0,4,5,6 and 3 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 804563-07:
(8*8)+(7*0)+(6*4)+(5*5)+(4*6)+(3*3)+(2*0)+(1*7)=153
153 % 10 = 3
So 804563-07-3 is a valid CAS Registry Number.

804563-07-3Upstream product

804563-07-3Relevant articles and documents

A cation-exchange resin promoted imino aldol reaction, leading to the synthesis of 2-isocephem and 2-oxa-isocephem

Shimizu, Makoto,Tachi, Masanori,Hachiya, Iwao

, p. 1394 - 1395 (2004)

Imino aldol reaction of ketene silyl acetals with the chiral imine 1 proceeds smoothly to give β-amino esters in good yields with high diasetereoselectivity under the influence of a cation-exchange resin, and the subsequent functional group transformation

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