1189552-11-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1189552-11-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,8,9,5,5 and 2 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1189552-11:
(9*1)+(8*1)+(7*8)+(6*9)+(5*5)+(4*5)+(3*2)+(2*1)+(1*1)=181
181 % 10 = 1
So 1189552-11-1 is a valid CAS Registry Number.
1189552-11-1Relevant articles and documents
A short and efficient synthesis of licochalcone E
Li, Jizhen,Mi, Yuhua,He, Jianghua,Deng, Xuming
, p. 2289 - 2292 (2010)
Licochalcone E was synthesized concisely via an abnormal Claisen rearrangement and Claisen-Schmidt condensation as the key reactions in a three-step sequence. The overall yield is 20% starting from prenyl bromide and 4-hydroxy-2-methoxybenzaldehyde. Georg
