81904-67-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81904-67-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,9,0 and 4 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 81904-67:
(7*8)+(6*1)+(5*9)+(4*0)+(3*4)+(2*6)+(1*7)=138
138 % 10 = 8
So 81904-67-8 is a valid CAS Registry Number.
81904-67-8Relevant articles and documents
Synthesis of triethylenetetramines
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Page/Page column 21, (2008/06/13)
Methods and intermediates for synthesizing triethylenetetramine and salts thereof, as well as novel triethylenetetramine salts and their crystal structure, and triethylenetetramine salts of high purity.