89868-80-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89868-80-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,8,6 and 8 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 89868-80:
(7*8)+(6*9)+(5*8)+(4*6)+(3*8)+(2*8)+(1*0)=214
214 % 10 = 4
So 89868-80-4 is a valid CAS Registry Number.
89868-80-4Relevant academic research and scientific papers
REGIOSPECIFIC MICHAEL ADDITIONS TO α-METHYLENE CYCLOPENTENONES
Siwapinyoyos, Tiwa,Thebtaranonth, Yodhathai
, p. 353 - 356 (2007/10/02)
Nucleophiles add in a Michael fashion to α-methylene cyclopentenones regiospecifically at the exocyclic cisoid-enone double bond.
