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330657-95-9

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330657-95-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 330657-95-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,3,0,6,5 and 7 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 330657-95:
(8*3)+(7*3)+(6*0)+(5*6)+(4*5)+(3*7)+(2*9)+(1*5)=139
139 % 10 = 9
So 330657-95-9 is a valid CAS Registry Number.

330657-95-9Downstream Products

330657-95-9Relevant academic research and scientific papers

Imidazole-catalyzed monoacylation of symmetrical diamines

Verma, Sanjeev K.,Acharya,Kaushik

, p. 4232 - 4235 (2010)

Figure Presented. An imidazole-catalyzed protocol for monoacylation of symmetrical diamines has been developed. The protocol gave selective monoacylation of aliphatic (cyclic and acyclic) primary and secondary diamines. In the reaction, imidazole acts as both catalyst and a leaving group. Different monoacylated piperazines and other diamines were synthesized at room temperature in an ethanol/water solvent system.

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