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92098-20-9

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92098-20-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 92098-20-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,2,0,9 and 8 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 92098-20:
(7*9)+(6*2)+(5*0)+(4*9)+(3*8)+(2*2)+(1*0)=139
139 % 10 = 9
So 92098-20-9 is a valid CAS Registry Number.

92098-20-9Relevant articles and documents

On the Thermal Behavior of Schiff Bases of Retinal and Its Analogues: 1,2-Dihydropyridine Formation via Six-?-Electron Electrocyclization of 13-Cis Isomers

Lera, Angel R. de,Reischl, Wolfgang,Okamura, William H.

, p. 4051 - 4063 (2007/10/02)

Reaction of 13-tert-butyl-13-cis-retinal (3a) with n-butylamine affords n-butyl Schiff base 3b, which affords the electrocyclized dihydropyridine (DHP) 7b with a half-life of ca. 11 min at 23 deg C in benzene-d6.The corresponding 11,13-dicis Sc

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