137906-19-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137906-19-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,9,0 and 6 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 137906-19:
(8*1)+(7*3)+(6*7)+(5*9)+(4*0)+(3*6)+(2*1)+(1*9)=145
145 % 10 = 5
So 137906-19-5 is a valid CAS Registry Number.
137906-19-5Relevant academic research and scientific papers
?-FACIAL STEREOSELECTIVITY IN THE DIELS-ALDER REACTION - III. AN UNSYMMETRICALLY BIRDCAGE-ANNULATED CYCLOHEXADIENE
Fessner, Wolf-Dieter,Grund, Clemens,Prinzbach, Horst
, p. 5935 - 5938 (2007/10/02)
The steric environment within diene 2 is shown to direct attack of ethylenic, acetylenic and heterodienophiles predominantly from the syn ?-face.
