104689-29-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 104689-29-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,4,6,8 and 9 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 104689-29:
(8*1)+(7*0)+(6*4)+(5*6)+(4*8)+(3*9)+(2*2)+(1*9)=134
134 % 10 = 4
So 104689-29-4 is a valid CAS Registry Number.
104689-29-4Relevant academic research and scientific papers
Rudolph,Haller
, p. 566 - 569 (1986)
Syntheses of diazixanopurines from derivatives of 8-chlorotheophylline by ring closure succeed in two ways: by reduction of azidobutyl-8-chlorotheophylline or by reductive amination of a corresponding ketone.
