27226-44-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 27226-44-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,7,2,2 and 6 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 27226-44:
(7*2)+(6*7)+(5*2)+(4*2)+(3*6)+(2*4)+(1*4)=104
104 % 10 = 4
So 27226-44-4 is a valid CAS Registry Number.
27226-44-4Relevant academic research and scientific papers
Synthesis of 1,4-Diazepines
Krieg, Benno,Urban, Ralf
, p. 799 - 802 (2007/10/02)
2,3-Diamino-1,4-naphthoquinone (1) reacts with variously substituted derivatives of diethyl malonate (2,5, and 7) to yield the imidazole derivative 8, a tetraethyl tetracarboxylate of type 6, or substituted diaminonaphthoquinones 3.These react further in
