94138-51-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 94138-51-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,4,1,3 and 8 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 94138-51:
(7*9)+(6*4)+(5*1)+(4*3)+(3*8)+(2*5)+(1*1)=139
139 % 10 = 9
So 94138-51-9 is a valid CAS Registry Number.
94138-51-9Relevant articles and documents
Total Synthesis of (-)-Grahamimycin A1
Hillis, Larry R.,Ronald, Robert C.
, p. 470 - 473 (2007/10/02)
A total synthesis of the novel antibiotic (-)-grahamimycin A1 (1) is described.The macrocycle 1 was prepared from the convergence of 5(R)-hydroxy-2(E)-hexanoate 2 and (R)-7-octynoic acid 3, both of which were readiy attainable from (R)-methylox
