166947-55-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 166947-55-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,6,9,4 and 7 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 166947-55:
(8*1)+(7*6)+(6*6)+(5*9)+(4*4)+(3*7)+(2*5)+(1*5)=183
183 % 10 = 3
So 166947-55-3 is a valid CAS Registry Number.
166947-55-3Relevant articles and documents
Pure enantiomers from simple, symmetric dienophiles
Riviere,Mauvais,Winterfeldt
, p. 1831 - 1846 (2007/10/02)
Starting from p-benzoquinone or 2-cyclopentene-1,4-dione as dienophiles and the enantiomerically pure dienes 1a and 1b, high pressure cycloadditions led to chiral adducts. These were transformed in a regioselective manner to generate well defined stereoge
