33348-63-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 33348-63-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,3,3,4 and 8 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 33348-63:
(7*3)+(6*3)+(5*3)+(4*4)+(3*8)+(2*6)+(1*3)=109
109 % 10 = 9
So 33348-63-9 is a valid CAS Registry Number.
33348-63-9Relevant academic research and scientific papers
Synthesis of (+/-)-Pterosin-M and Onitin
Raju, B.,Rao, G. S. Krishna
, p. 914 - 916 (2007/10/02)
2,4-Dimethyl-3-carbomethoxymethylanisole (3) on LAH reduction gives the alcohol (4) which is converted into the methyl ether (5).Formylation of 5 to 6, followed by Horner reaction on 6 with the appropriate phosphonate yields the unsaturated ester (7) whic
