212970-55-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 212970-55-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,2,9,7 and 0 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 212970-55:
(8*2)+(7*1)+(6*2)+(5*9)+(4*7)+(3*0)+(2*5)+(1*5)=123
123 % 10 = 3
So 212970-55-3 is a valid CAS Registry Number.
212970-55-3Relevant articles and documents
Synthesis of batzelladine E and its E isomer
Snider, Barry B.,Chen, Jinsheng
, p. 5697 - 5700 (1998)
The synthesis of 4E established that batzelladine E (4Z) has the Z- rather than the E-stereochemistry previously depicted. Batzelladine E (4Z) has been synthesized by an efficient 9-step route in 3% overall yield.
