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859979-85-4

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859979-85-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 859979-85-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,9,9,7 and 9 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 859979-85:
(8*8)+(7*5)+(6*9)+(5*9)+(4*7)+(3*9)+(2*8)+(1*5)=274
274 % 10 = 4
So 859979-85-4 is a valid CAS Registry Number.

859979-85-4Relevant articles and documents

Cleavage of Methylenedioxy Ring. II. Cleavage with Sodium Phenoxide and Methoxide in Dimethyl Sulfoxide

Kobayashi, Shigeru,Imakura, Yasuhiro,Horikawa, Ritsuko

, p. 1287 - 1293 (2007/10/02)

Regioselective cleavage of the methylenedioxy ring in piperonals (1, 6, and 7) and 3,4-methylenedioxynitrobenzenes (8 and 9) by oxide ions in dimethyl sulfoxide was achieved: the 4-hydroxybenzene derivatives (2, 10-13, and 22) were obtained with the phenoxide ion, while the 3-hydroxybenzene derivatives (4, 18-21, 23, 26, and 29) were obtained with the methoxide or benzyloxide ion.Keywords - cleavage of methylenedioxy ring; regioselectivity; piperonals; 3,4-methylenedioxynitrobenzenes; sodium phenoxide; sodium methoxide; dimethyl sulfoxide; 3-hydroxybenzene derivatives; 4-hydroxybenzene derivatives; NMR spectra

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