552849-97-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 552849-97-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,5,2,8,4 and 9 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 552849-97:
(8*5)+(7*5)+(6*2)+(5*8)+(4*4)+(3*9)+(2*9)+(1*7)=195
195 % 10 = 5
So 552849-97-5 is a valid CAS Registry Number.
552849-97-5Relevant articles and documents
A convergent total synthesis of phorboxazole A
Gonzalez, Miguel A.,Pattenden, Gerald
, p. 1255 - 1258 (2003)
The potent cytostatic marine metabolite phorboxazole A (see structure) was prepared from three key fragments. Following attachment of a major portion of the side chain through C32-C33 and an intermolecular E-selective olefination reaction to form the C19-