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159067-19-3

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159067-19-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 159067-19-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,9,0,6 and 7 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 159067-19:
(8*1)+(7*5)+(6*9)+(5*0)+(4*6)+(3*7)+(2*1)+(1*9)=153
153 % 10 = 3
So 159067-19-3 is a valid CAS Registry Number.

159067-19-3Relevant articles and documents

SYNTHESIS AND REACTIONS OF 2-AMINO-4 (SUBSTITUTED PHENYL)-5,6,7,8-TETRABROMO-1 (2H)-PHTHALAZINONE DERIVATIVES

Yassin, F. A.

, p. 508 - 511 (2007/10/03)

2-Amino-4(substituted phenyl)-5,6,7,8-tetrabromo-1 (2H)-phthalazinones 3 a-c have been prepared via the interaction of the benzoxazones 2 a-c with hydrazine hydrate in boiling pyridine.The reaction of 3 a with carbon disulphide and hydrazine hydrate in the presence of liquid ammonia gave 2-thiosemicarbazide phthalazinone derivative 4.Also the reaction of 3 a with each of phenylisothiocyanate. chloroacetyl chloride and α-chloroacetanilide gave the corresponding N-Phenyl aminocarbothiamido, α-chloroacetamido and N-phenyl carbonylmethylamino phthalazinones 6,9,11, respectively.The biological activity of some compounds has been described. - Key words: 2-Amino-4 (substituted phenyl)-5,6,7,8-tetrabromo-1(2H)- Phthalazinones 3 a-c.

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