190653-28-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 190653-28-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,0,6,5 and 3 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 190653-28:
(8*1)+(7*9)+(6*0)+(5*6)+(4*5)+(3*3)+(2*2)+(1*8)=142
142 % 10 = 2
So 190653-28-2 is a valid CAS Registry Number.
190653-28-2Relevant academic research and scientific papers
Synthesis of the aromatic unit of calicheamicin γ1 I
Hu, Yong-Zhou,Clive, Derrick L. J.
, p. 1421 - 1424 (2007/10/03)
Vanillin and piperonal are each converted into methyl 2,3-dimethoxy-6-methyl-4-(prop-2-enyl)benzoate 12, and this is then elaborated into methyl 4-hydroxy-3-iodo-5,6-dimethoxy-2-methylbenzoate 24, which represents the aromatic unit of calicheamicin γ1I.
