175235-44-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 175235-44-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,5,2,3 and 5 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 175235-44:
(8*1)+(7*7)+(6*5)+(5*2)+(4*3)+(3*5)+(2*4)+(1*4)=136
136 % 10 = 6
So 175235-44-6 is a valid CAS Registry Number.
175235-44-6Relevant articles and documents
Palladium catalyzed cross-coupling acylation approach to the antitumor antibiotic Fredericamycin A
Evans, P. Andrew,Brandt, Thomas A.
, p. 1367 - 1370 (1996)
The palladium catalyzed cross-coupling of the organozinc reagent derived from 2-bromobenzaldehyde ethylene ketal 4 with the acyl chlorides 5 and 8 provides an expeditious route to the BCD 2 and BCDE 3 ring systems of Fredericamycin A 1.