139537-12-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 139537-12-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,5,3 and 7 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 139537-12:
(8*1)+(7*3)+(6*9)+(5*5)+(4*3)+(3*7)+(2*1)+(1*2)=145
145 % 10 = 5
So 139537-12-5 is a valid CAS Registry Number.
139537-12-5Relevant articles and documents
Synthesis of some bischromophoric dyes containing nonabsorbing flexible bridge
Mishra, J K,Behera, P K,Parida, S K,Mishra, B K
, p. 118 - 122 (2007/10/02)
Bis-chromophoric dyes (9-68) having nonabsorbing flexible bridges have been synthesised by the condensation of 1,1'-alkylenebis (α/γ picolinium bromides) (1-8) with aromatic aldehydes.
