157559-22-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 157559-22-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,5,5 and 9 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 157559-22:
(8*1)+(7*5)+(6*7)+(5*5)+(4*5)+(3*9)+(2*2)+(1*2)=163
163 % 10 = 3
So 157559-22-3 is a valid CAS Registry Number.
157559-22-3Relevant articles and documents
Cyclialkylations of Conjugated Dienones with Furans
Majetich, George,Zhang, Yong,Liu, Shuang
, p. 4887 - 4890 (1994)
Fused tricyclic compounds with the salient features of the guaianolides and the pseudoguaianolides were prepared using a furan-based cyclialkylation strategy.
