121686-89-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 121686-89-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,6,8 and 6 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 121686-89:
(8*1)+(7*2)+(6*1)+(5*6)+(4*8)+(3*6)+(2*8)+(1*9)=133
133 % 10 = 3
So 121686-89-3 is a valid CAS Registry Number.
121686-89-3Relevant academic research and scientific papers
SYNTHESIS OF (2R,3S)-2-HYDROXYMETHYL-3-HYDROXYPYRROLIDINE AND THE GEISSMAN-WAISS LACTONE FROM (S)-PYROGLUTAMIC ACID
Ikota, Nobuo,Hanaki, Akira
, p. 2535 - 2538 (2007/10/02)
The synthesis of (2R,3S)- and (2R,3R)-2-hydroxymethyl-3-hydroxypyrrolidine derivatives (5 and 7) and the Geisman-Waiss lactone (12) has been achieved from (S)-pyroglutamic acid.
