143245-42-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 143245-42-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,2,4 and 5 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 143245-42:
(8*1)+(7*4)+(6*3)+(5*2)+(4*4)+(3*5)+(2*4)+(1*2)=105
105 % 10 = 5
So 143245-42-5 is a valid CAS Registry Number.
143245-42-5Relevant articles and documents
Stereoselective Synthesis of the C(13)-C(25) Segment of Bafilomycin A1
Roush, William R.,Bannister, Thomas D.
, p. 3587 - 3590 (1992)
The aldol reaction of 2 and the lithium enolate of 3 provides the bafilomycin C(13)-C(25) fragment 1 with 8:1 stereoselectivity.
