1216638-27-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1216638-27-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,6,6,3 and 8 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1216638-27:
(9*1)+(8*2)+(7*1)+(6*6)+(5*6)+(4*3)+(3*8)+(2*2)+(1*7)=145
145 % 10 = 5
So 1216638-27-5 is a valid CAS Registry Number.
1216638-27-5Relevant articles and documents
Convenient and efficient preparation of ethyl 6-n-decyloxy-7-ethoxy-4- hydroxyquinoline-3-carboxylate
Xu, Maoyou,Zhang, Jin,Wu, Xue,Sun, Juanjuan,Shi, Zhiqiang
, p. 992 - 997 (2010)
Ethyl 6-N-decyloxy-7-ethoxy-4-hydroxyquinoline-3-carboxylate has been synthesized from pyrocatechol in six steps and in 39.3% overall yield.