14172-67-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 14172-67-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,4,1,7 and 2 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 14172-67:
(7*1)+(6*4)+(5*1)+(4*7)+(3*2)+(2*6)+(1*7)=89
89 % 10 = 9
So 14172-67-9 is a valid CAS Registry Number.
14172-67-9Relevant articles and documents
Syntheses and biological activities of (+/-)-streptovitacin A and E-73.
Kondo,Oritani,Yamashita
, p. 1531 - 1536 (2007/10/02)
(+/-)-Streptovitacin A (1) and its stereoisomers were synthesized by an aldol reaction of (+/-)-2,4-dimethyl-4-trimethylsiloxy-1-cyclohexanones (4b and 9) with 4-(2-oxoethyl)-2,6-piperidinedione (5). E-72 (2) was derived from synthetic 1. (+/-)-1 showed m