2894-53-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 2894-53-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,8,9 and 4 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 2894-53:
(6*2)+(5*8)+(4*9)+(3*4)+(2*5)+(1*3)=113
113 % 10 = 3
So 2894-53-3 is a valid CAS Registry Number.
2894-53-3Relevant articles and documents
Synthesis of benzodiazepines
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, (2008/06/13)
A general method is provided for the synthesis of substituted 2,3-dihydro-5-phenyl-1H-1,4-benzodiazepines by the reaction of bis-trifiated-2,5-dihydroxy benzophenones with 1,2-bisaminoethanes, followed by displacement of the 7-trifloxy group.
