220384-85-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 220384-85-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,0,3,8 and 4 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 220384-85:
(8*2)+(7*2)+(6*0)+(5*3)+(4*8)+(3*4)+(2*8)+(1*5)=110
110 % 10 = 0
So 220384-85-0 is a valid CAS Registry Number.
220384-85-0Relevant articles and documents
First total synthesis of (-)-8-epi-9-deoxygoniopypyrone
Surivet, Jean-Philippe,Vatele, Jean-Michel
, p. 9681 - 9682 (1998)
The structure and absolute configuration of natural 8-epi-9- deoxygoniopypyrone have been confirmed by an efficient and highly diastereoselective synthesis in 15 steps from (S)mandelic acid with an overall yield of 43%.