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121105-92-8

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121105-92-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 121105-92-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,1,0 and 5 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 121105-92:
(8*1)+(7*2)+(6*1)+(5*1)+(4*0)+(3*5)+(2*9)+(1*2)=68
68 % 10 = 8
So 121105-92-8 is a valid CAS Registry Number.

121105-92-8Relevant articles and documents

Pyridazines with Heteroatom Substituents in Position 3 and 5. 2 . Regioselective Introduction of Mercapto Groups in Pyridazines

Olesen, Preben H.,Kappe, Thomas

, p. 1719 - 1723 (2007/10/02)

The nucleophilic substitution of halogen in 3,5-dichloro-6-phenylpyridazine 1, 5-chloro-2-methyl-6-phenylpyridazin-3(2H)-one 13 as well as in 3-chloro-2-methyl-6-phenylpyridazin-5(2H)-one 14 with methoxy, ethoxy, and the 2-methyl-2-propanethiolate anion is described.In the last type of compounds the t-butylthio groups can be eliminated regioselectively with Lewis acids, resulting in the formation of monomercapto and monothiopyridazines.

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