157330-41-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 157330-41-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,3,3 and 0 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 157330-41:
(8*1)+(7*5)+(6*7)+(5*3)+(4*3)+(3*0)+(2*4)+(1*1)=121
121 % 10 = 1
So 157330-41-1 is a valid CAS Registry Number.
157330-41-1Relevant articles and documents
The Radical Cyclization Approach to Morphine. Models for Highly Oxygenated Ring-III Synthons
Parker, Kathlyn A.,Fokas, Demosthenes
, p. 3933 - 3938 (2007/10/02)
4-Iodo-3-methyl-2-cyclohexenone (9) and 3-alkyl 3-cyclohexene-1,2-diol derivatives 16 were examined as ring-III equivalents for the tandem radical cyclization approach to the synthesis of morphine (1a).
