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155728-88-4

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155728-88-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 155728-88-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,5,7,2 and 8 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 155728-88:
(8*1)+(7*5)+(6*5)+(5*7)+(4*2)+(3*8)+(2*8)+(1*8)=164
164 % 10 = 4
So 155728-88-4 is a valid CAS Registry Number.

155728-88-4Downstream Products

155728-88-4Relevant articles and documents

A novel synthesis of 2-hydroxymethyl-3-phenyl-1, 4-benzodioxanes

Ganesh,Krupadanam, G.L. David

, p. 3121 - 3131 (1998)

The reaction of 3,4-dihydroxybenzaldehyde (4a), methyl-(3,4-dihydroxy) benzoate (4b), ethyl-(3,4-dihydroxy) benzoate (4c), 3,4-dihydroxybenzonitrile (4d), 2,3-dihydroxynitrobenzene (4e) with 2-bromomethyl-3-phenyl oxirane (3) in acetone-K2CO3 medium gave six membered heterocycles, 2-hydroxymethyl-3- phenyl-1,4-benzodioxanes (5a-e) regioselectively.

A new synthesis of heterocyclic compounds with 1,5-benzodioxapine, 1,5-benzodiazepine, 1,5-benzothiazepine ring systems

Ganesh,Krupadanam, G.L. David

, p. 34 - 38 (2007/10/03)

A variety of seven membered heterocycles, 1,5-benzodioxapines 5a,b,e, 1,5-benzodiazepine 5c and 1,5-benzothiazepine 5d have been prepared by the reaction of 1,2-dihydroxy benzene 4a,1,2-diaminobenzene 4c,2-aminothiophenol 4d and pyrogallol 4c with 2-bromo

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