70938-07-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 70938-07-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,9,3 and 8 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 70938-07:
(7*7)+(6*0)+(5*9)+(4*3)+(3*8)+(2*0)+(1*7)=137
137 % 10 = 7
So 70938-07-7 is a valid CAS Registry Number.
70938-07-7Relevant academic research and scientific papers
Optical Rotation of Quaterphenyl Derivatives
Fischer, Erika,Hess, Heinrich,Lorenz, Thomas,Musso, Hans,Rossnagel, Ingrid
, p. 783 - 789 (2007/10/02)
Quatermesityl (2) has been resolved by chromatography into pure enantiomers; (S)-(+)-2 shows D = +108 as expected. (S)-(+)-3,3'-Diphenylbimesityl (9) has been prepared enantiospecifically and shows D = +106.Chromatographic reso
