22346-43-6 Usage
General Description
4-hydroxy-7-methylamino-2-Naphthanlenesulfonic acid, also known as Methyl Orange, is a synthetic compound commonly used as a pH indicator in laboratory settings. Its chemical structure consists of a naphthalene ring with a methylamino group and a hydroxy group, as well as a sulfonic acid group. Methyl Orange is commonly used in titrations to determine the endpoint of a reaction by changing color based on the pH of the solution. It is typically red in acidic conditions and yellow in alkaline conditions, making it a useful tool for determining the acidity or basicity of a solution in chemical analysis. Additionally, Methyl Orange is also used in the textile industry as a dye for silk and wool, and as a colorant in various products. However, it should be handled with care as it is toxic if ingested and can cause irritation to the skin and eyes.
Check Digit Verification of cas no
The CAS Registry Mumber 22346-43-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,2,3,4 and 6 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 22346-43:
(7*2)+(6*2)+(5*3)+(4*4)+(3*6)+(2*4)+(1*3)=86
86 % 10 = 6
So 22346-43-6 is a valid CAS Registry Number.
InChI:InChI=1/C11H11NO4S/c1-12-8-2-3-10-7(4-8)5-9(6-11(10)13)17(14,15)16/h2-6,12-13H,1H3,(H,14,15,16)
22346-43-6Relevant articles and documents
2 - (N-substituted amino) - 5-naphthol-7-sulfonic acid clean production process (by machine translation)
-
Paragraph 0023-0029, (2017/03/28)
This invention belongs to the dyeing industry, relates to a new material in the field of technology of the dye intermediates, in particular 2 - (N-substituted amino) - 5-naphthol-7-sulfonic acid clean production process. To improve the quality of this invention, waste water is greatly reduced. 2 - (N-substituted amino) - 5-naphthol-7-sulfonic acid clean production process, the method comprises the following steps: A, condensation reaction; B, material after treatment; C, refining the filter cake. And the recovery and reuse of the filtrate. The method of the present invention that are used in the can be of various raw materials are purchased from the market, the compounds of the present invention and the use of the preparation process of the security process is, environmental protection, energy-saving. (by machine translation)
Copper complexes of sulpho groups containing disazo dyestuffs
-
, (2008/06/13)
The new disazo dyestuffs of the formula (I) STR1 in which the substituents and indices have the meaning given in the description, and salts thereof are outstandingly suitable for dyeing cellulose-containing materials and leather in blue shades having good wet- and light-fastnesses.