2243-71-2 Usage
Description
1,2-Dihydroxy-4-nitro-9,10-anthraquinone is a dark brown organic compound that is soluble in ethanol. It exhibits unique color reactions in concentrated sulfuric acid, turning yellow-red and producing yellow flocks upon dilution.
Uses
Used in Chemical Industry:
1,2-Dihydroxy-4-nitro-9,10-anthraquinone is used as an intermediate in the synthesis of various organic compounds and dyes for its unique chemical properties and color reactions.
Used in Pharmaceutical Industry:
1,2-Dihydroxy-4-nitro-9,10-anthraquinone is used as a pharmaceutical intermediate for the development of drugs targeting specific diseases, due to its chemical structure and reactivity.
Used in Dye Industry:
1,2-Dihydroxy-4-nitro-9,10-anthraquinone is used as a dyestuff in the production of various colorants and pigments, taking advantage of its color-changing properties in different chemical environments.
Preparation
(a) 1,2-Dihydroxyanthraquinone dibenzoate?nitrifying after hydrolysis; (b) 1,2-Dihydroxyanthracene-9,10-dione in sulfuric acid of nitration: (C) 1,2-Dihydroxyanthracene-9,10-dione in Arsenic acid, the presence of hemihydrate?in sulfuric acid of nitration.
Check Digit Verification of cas no
The CAS Registry Mumber 2243-71-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,2,4 and 3 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 2243-71:
(6*2)+(5*2)+(4*4)+(3*3)+(2*7)+(1*1)=62
62 % 10 = 2
So 2243-71-2 is a valid CAS Registry Number.
