195820-85-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 195820-85-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,5,8,2 and 0 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 195820-85:
(8*1)+(7*9)+(6*5)+(5*8)+(4*2)+(3*0)+(2*8)+(1*5)=170
170 % 10 = 0
So 195820-85-0 is a valid CAS Registry Number.
195820-85-0Relevant articles and documents
A tyrosine-derived benzofuranone related to diazonamide A.
Vedejs,Wang
, p. 1031 - 1032 (2007/10/03)
[formula: see text] Cyclization of 8 with PPA followed by MCPBA oxidation affords the benzofuranone 10. Treatment with a chiral chloroformate in the presence of DMAP affords the target benzofuranone 13 via an enol ester 12.
