223664-01-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 223664-01-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,3,6,6 and 4 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 223664-01:
(8*2)+(7*2)+(6*3)+(5*6)+(4*6)+(3*4)+(2*0)+(1*1)=115
115 % 10 = 5
So 223664-01-5 is a valid CAS Registry Number.
223664-01-5Relevant articles and documents
Total synthesis of the proposed structure of (+)-tolyporphin A O,O- diacetate
Minehan,Kishi
, p. 923 - 925 (2007/10/03)
Four monocyclic precursors were assembled in the total synthesis of the proposed structure 1-A of (+)-tolyporphin A O,O-diacetate (X = Ac). Comparison of the spectroscopic data demonstrated that synthetic tolyporphin O,O-diacetate did not match the O,O-di
