67036-33-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 67036-33-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,0,3 and 6 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 67036-33:
(7*6)+(6*7)+(5*0)+(4*3)+(3*6)+(2*3)+(1*3)=123
123 % 10 = 3
So 67036-33-3 is a valid CAS Registry Number.
InChI:InChI=1/C6H8ClNO5/c7-2-4(9)8-3(6(12)13)1-5(10)11/h3H,1-2H2,(H,8,9)(H,10,11)(H,12,13)
67036-33-3Relevant academic research and scientific papers
Process for preparing diketopiperazine derivatives
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, (2008/06/13)
A diketopiperazine derivative is prepared by reacting chloroacetylaspartic acid with ammonia water, diesterifying the resulting glycyl-aspartic acid with an alkanol, and then cyclizing the diester in neutral or weakly basic water or in an alkanol-water solvent mixture.