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1416817-77-0

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1416817-77-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1416817-77-0 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,1,6,8,1 and 7 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1416817-77:
(9*1)+(8*4)+(7*1)+(6*6)+(5*8)+(4*1)+(3*7)+(2*7)+(1*7)=170
170 % 10 = 0
So 1416817-77-0 is a valid CAS Registry Number.

1416817-77-0Relevant articles and documents

Dibutylphosphate (DBP) mediated synthesis of cyclic N,N′- disubstituted urea derivatives from amino esters: A comparative study

Agrawal, Sumit K.,Sathe, Manisha,Kaushik, M. P.,Halve, A. K.

supporting information, p. 5996 - 5999,4 (2020/08/20)

The N,N′-disubstituted urea derivatives such as amino acid hydantoins and dihydrouracil derivatives were prepared starting from natural and unnatural amino acid esters using dibutylphosphate (DBP). During the attempted synthesis of N-heterocycles with larger than six-membered rings containing the N,N′-disubstituted urea functionalities, three unexpected products namely squamolone, N-methyl pyrrolidine-2-one, and diketopiperazine were isolated.

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