251950-73-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 251950-73-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,1,9,5 and 0 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 251950-73:
(8*2)+(7*5)+(6*1)+(5*9)+(4*5)+(3*0)+(2*7)+(1*3)=139
139 % 10 = 9
So 251950-73-9 is a valid CAS Registry Number.
251950-73-9Relevant academic research and scientific papers
Selective acylation reactions of an isotaxane tetraol. A direct pathway to introduction of the oxetane ring
Zeng, Qingbei,Paquette, Leo A.
, p. 1547 - 1550 (2007/10/03)
An isotaxane fully functionalized as taxol in rings C and D was synthesized in six steps from tetraol 2 with complete chemical control over the four available hydroxyl substituents.
