81844-71-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81844-71-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,8,4 and 4 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 81844-71:
(7*8)+(6*1)+(5*8)+(4*4)+(3*4)+(2*7)+(1*1)=145
145 % 10 = 5
So 81844-71-5 is a valid CAS Registry Number.
81844-71-5Relevant academic research and scientific papers
Cationic polycyclizations of polyenes via their bromohydrins. II. Synthesis of (±)-aplysistatin
Gosselin,Rouessac
, p. 5515 - 5518 (2007/10/02)
A synthesis of (±) aplysistatin 1 from geraniol is described in which the key step is the electrophilic cyclization of the bromohydrin 8.
