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95838-92-9

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95838-92-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 95838-92-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,5,8,3 and 8 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 95838-92:
(7*9)+(6*5)+(5*8)+(4*3)+(3*8)+(2*9)+(1*2)=189
189 % 10 = 9
So 95838-92-9 is a valid CAS Registry Number.

95838-92-9Relevant articles and documents

Heterocycles from α-Nitroolefins, VIII. - 2-Methyl-3-pyrrolecarboxylates from α-Nitroolefins and Acetoacetates

Boberg, Friedrich,Garburg, Karl-Heinz,Goerlich, Karl-Joachim,Pipereit, Eberhard,Ruhr, Maria

, p. 239 - 250 (2007/10/02)

3-Pyrrolecarboxylates 4 can be prepared from α-nitroolefins 1 and acetoacetates 2 by two methods: (a) 1 and 2 react to give 4,5-dihydro-5-methyleneamino-3-furancarboxylates 3 which are hydrolyzed, (b) the nitronic acids 8, adducts of 1 and 2, yield with different reduction agents the heterocycles 4.

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