74838-13-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 74838-13-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,8,3 and 8 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 74838-13:
(7*7)+(6*4)+(5*8)+(4*3)+(3*8)+(2*1)+(1*3)=154
154 % 10 = 4
So 74838-13-4 is a valid CAS Registry Number.
InChI:InChI=1/C14H18O6/c1-9-4-3-5-13(17)20-10(2)8-12(16)11(15)6-7-14(18)19-9/h3,5,9-10H,4,6-8H2,1-2H3/b5-3-/t9-,10-/m1/s1
74838-13-4Relevant academic research and scientific papers
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