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84831-58-3

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84831-58-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 84831-58-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,8,3 and 1 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 84831-58:
(7*8)+(6*4)+(5*8)+(4*3)+(3*1)+(2*5)+(1*8)=153
153 % 10 = 3
So 84831-58-3 is a valid CAS Registry Number.

84831-58-3Relevant articles and documents

The Synthesis of Medium-Sized Cyclic Lactams by the Intramolecular Friedel-Crafts Cyclization of Isocyanates. Formation of Novel Pyrazolobenzolactams

Butler, Donald E.,Alexander, Susan M.

, p. 1173 - 1177 (2007/10/02)

A series of 4-ω-phenylalkyl substituted-1H-pyrazol-5-amines has been synthesized from the corresponding α-acetylphenylalkanenitriles and methylhydrazine.They were converted into the corresponding 5-isocyanates and cyclized under Friedel-Crafts conditions

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