821-76-1 Usage
General Description
1,7-Dichloroheptane is a chemical compound with the molecular formula C7H14Cl2. It is a colourless liquid with a strong, chloroform-like odor. 1,7-Dichloroheptane is commonly used as an intermediate in the production of pharmaceuticals, agrochemicals, and other organic compounds. It is also used as a solvent and in chemical synthesis. The compound is considered to be mildly toxic, and exposure to high concentrations can cause irritation to the eyes, skin, and respiratory system. It is important to handle and store 1,7-Dichloroheptane with proper safety precautions to prevent any adverse effects on human health and the environment.
Check Digit Verification of cas no
The CAS Registry Mumber 821-76-1 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 8,2 and 1 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 821-76:
(5*8)+(4*2)+(3*1)+(2*7)+(1*6)=71
71 % 10 = 1
So 821-76-1 is a valid CAS Registry Number.
InChI:InChI=1/C7H14Cl2/c8-6-4-2-1-3-5-7-9/h1-7H2
821-76-1Relevant articles and documents
MECHANISMS OF FREE-RADICAL REACTIONS. XXIV. QUANTITATIVE DESCRIPTION OF THE POLAR EFFECTS OF SUBSTITUENTS ON THE KINETICS OF THE FREE-RADICAL CHLORINATION OF ALIPHATIC COMPOUNDS BY N-CHLOROPIPERIDINE
Dneprovskii, A. S.,Mil'tsov, S. A.,Arbuzov, P. V.
, p. 1826 - 1835 (2007/10/02)
The free-radical chlorination of 1-substituted alkanes with electron-withdrawing substituents by N-chloropiperidine in trifluoroacetic acid was studied by the method of competing reactions, and the relative rate constants were obtained for all positions of the substrates.The data on the position selectivity can be described satisfactorily by means of an electrostatic model of the polar effect of the substituent, calculated according to the Kirkwood-Westheimer equation.The obtained characteristics of the electrostatic effect can be successfully applied to calculation of the substrate selectivity and the intermolecular relative rate constants for all the positions, beginning with the third.The Taft equation is unsuitable for description of the effect of substituents on the reaction rate.
