177905-47-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 177905-47-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,7,9,0 and 5 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 177905-47:
(8*1)+(7*7)+(6*7)+(5*9)+(4*0)+(3*5)+(2*4)+(1*7)=174
174 % 10 = 4
So 177905-47-4 is a valid CAS Registry Number.
177905-47-4Relevant articles and documents
Total synthesis of pteridic acids A and B
Paterson, Ian,Anderson, Edward A.,Findlay, Alison D.,Knappy, Christopher S.
, p. 4768 - 4777 (2008/09/20)
A convergent synthesis of pteridic acids A and B, epimeric spiroacetal polyketides with potent plant growth promoter properties, is described. The use of boron aldol methodology efficiently achieved the stereocontrolled construction of advanced C1-C11 and
