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57050-62-1

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57050-62-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 57050-62-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,0,5 and 0 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 57050-62:
(7*5)+(6*7)+(5*0)+(4*5)+(3*0)+(2*6)+(1*2)=111
111 % 10 = 1
So 57050-62-1 is a valid CAS Registry Number.

57050-62-1Downstream Products

57050-62-1Relevant articles and documents

Lactam analogues of pentalene. A new oral-pot synthesis of pyrrolo[3,2-b]pyrrole-2,5-diones deriving from pulvinic acid

Wuckelt, Joerg,Doering, Manfred,Langer, Peter,Goerls, Helmar,Beckert, Rainer

, p. 5269 - 5272 (1997)

A new and convenient one-pot synthesis of a variety of N-aryl lactam analogues 4 of pentalene has been developed. Pulvinic acid dilactams 4 are of interest due to their electronic and optical features and as synthetic pigments.

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