81409-67-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81409-67-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,4,0 and 9 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 81409-67:
(7*8)+(6*1)+(5*4)+(4*0)+(3*9)+(2*6)+(1*7)=128
128 % 10 = 8
So 81409-67-8 is a valid CAS Registry Number.
81409-67-8Relevant academic research and scientific papers
THE SYNTHESIS OF d1-STEPORPHINE, 4-HYDROXYAPORPHINE TYPE ALKALOIDS.
Kunitomo, Jun-ichi,Oshikata, Megumi,Suwa, Kiyoko,Nakayama, Kayoko,Murakami, Yoshiko
, p. 45 - 48 (2007/10/02)
A 4-hydroxyaporphine type alkaloid, steporphine (1), has been stereospecifically synthesized for the first time.
