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1970-56-5

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1970-56-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1970-56-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,9,7 and 0 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1970-56:
(6*1)+(5*9)+(4*7)+(3*0)+(2*5)+(1*6)=95
95 % 10 = 5
So 1970-56-5 is a valid CAS Registry Number.

1970-56-5Relevant articles and documents

Bromo-nitro substitution on a tertiary α carbon - A previously uncharacterized facet of the Kornblum substitution

Leonard, Matthew J.,McKay, Peter G.,Lingham, Anthony R.

, p. 76401 - 76418 (2015/09/22)

Sodium nitrite in dimethylformamide substitutes nitro for bromine alpha to an amide carbonyl in high yield at a tertiary site. Hammett plots show a strongly positive ρ value (+0.67), indicating a negatively-charged transition state, in contrast to the typical SN1/SN2 mechanism domain for Kornblum substitutions. 2015

Synthesis and evaluation of the local anesthetic activity of a series of aliphatic amino acid anilides

Fujihara,Hirakura,Mizoguchi,Kawanishi,Sugihara,Ohshiro

, p. 88 - 97 (2007/10/05)

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