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130850-78-1

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130850-78-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 130850-78-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,0,8,5 and 0 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 130850-78:
(8*1)+(7*3)+(6*0)+(5*8)+(4*5)+(3*0)+(2*7)+(1*8)=111
111 % 10 = 1
So 130850-78-1 is a valid CAS Registry Number.

130850-78-1Relevant articles and documents

Clean procedure for synthesis of chromeno[4,3-b]benzo [f]quinolin-6-one derivatives: Reaction of N-arylidenenaphthalen-2-amine with 4-hydroxycoumarin in aqueous media

Wang, Xiang-Shan,Zhang, Mei-Mei,Zeng, Zhao-Sen,Shi, Da-Qing,Tu, Shu-Jiang

, p. 2047 - 2057 (2007/10/03)

A short and simple synthesis of chromeno[4,3- b ]benzo[ f ]quinolin-6-one derivatives was accomplished in good to high yields via the reaction of N -arylidenenaphthalen-2-amine with 4-hydroxycoumarin in aqueous media catalyzed by TEBAC. The structures wer

Reaction of β-Arylidennaphthylamines with 4-Hydroxycoumarin. A Correction in Structural Assignment of the Product. III.

Martinez, Roberto,Cortes, Eduardo,Toscano, Ruben A.,Alfaro, L. Josue

, p. 1273 - 1276 (2007/10/02)

The reaction of 4-hydroxycoumarin with β-arylidennaphthylamines constitutes a convenient synthetic route to the hitherto unknown 2H-benzobenzopyranoquinolin-2-one, VI.The X-ray crystallography data conform with the present benzopyranoq

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