23780-53-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 23780-53-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,7,8 and 0 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 23780-53:
(7*2)+(6*3)+(5*7)+(4*8)+(3*0)+(2*5)+(1*3)=112
112 % 10 = 2
So 23780-53-2 is a valid CAS Registry Number.
23780-53-2Relevant articles and documents
Direct N1-selective alkylation of hydantoins using potassium bases
Shintani, Yumi,Kato, Koichi,Kawami, Masashi,Takano, Mikihisa,Kumamoto, Takuya
, p. 407 - 410 (2021/04/30)
Hydantoins, including the antiepileptic drug phenytoin, contain an amide nitrogen and an imide nitrogen, both of which can be alkylated. However, due to the higher acidity of its proton, N3 can be more easily alkylated than N1 under
