6949-39-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 6949-39-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,9,4 and 9 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 6949-39:
(6*6)+(5*9)+(4*4)+(3*9)+(2*3)+(1*9)=139
139 % 10 = 9
So 6949-39-9 is a valid CAS Registry Number.
6949-39-9Relevant 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.