950887-03-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 950887-03-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,5,0,8,8 and 7 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 950887-03:
(8*9)+(7*5)+(6*0)+(5*8)+(4*8)+(3*7)+(2*0)+(1*3)=203
203 % 10 = 3
So 950887-03-3 is a valid CAS Registry Number.
950887-03-3Relevant academic research and scientific papers
Total synthesis of (+)-asperazine
Govek, Steven P.,Overman, Larry E.
, p. 8499 - 8513 (2008/02/09)
The first total synthesis of the structurally novel cyclotryptophan alkaloid asperazine is reported. The central step in the synthetic sequence is a diastereoselective intramolecular Heck reaction in which the substituent controlling stereoselection is ex
