70669-54-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 70669-54-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,6,6 and 9 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 70669-54:
(7*7)+(6*0)+(5*6)+(4*6)+(3*9)+(2*5)+(1*4)=144
144 % 10 = 4
So 70669-54-4 is a valid CAS Registry Number.
70669-54-4Relevant academic research and scientific papers
Total synthesis of papaverrubine E
Hohlbrugger,Klotzer
, p. 849 - 852 (2007/10/09)
The phthalide isoquinoline alkaloid (-)-bicuculline, which had previously been prepared by total synthesis, is transformed into racemic papaverrubine E (±), its natural (+)- and its unnatural (-)-enantiomer.
