83-22-7 Usage
General Description
4-hydroxy-5-[(phenylsulphonyl)amino]naphthalene-2,7-disulphonic acid, also known as Reactive Blue 19, is a chemical compound commonly used as a dye in the textile industry. It belongs to the class of naphthalene sulfonic acid dyes, which are widely used for coloring fabrics and other materials. 4-hydroxy-5-[(phenylsulphonyl)amino]naphthalene-2,7-disulphonic acid contains hydroxyl and sulphonyl functional groups, and its chemical structure consists of two naphthalene rings with two sulphonate groups attached. Reactive Blue 19 is known for its high affinity for cellulose fibers, making it suitable for dyeing cotton and other plant-based textiles. Additionally, it is a water-soluble and reactive dye, allowing for easy application and excellent color fastness properties. However, it is important to handle this chemical with care, as it may cause skin and eye irritation and is harmful if ingested or inhaled.
Check Digit Verification of cas no
The CAS Registry Mumber 83-22-7 includes 5 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 2 digits, 8 and 3 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 83-22:
(4*8)+(3*3)+(2*2)+(1*2)=47
47 % 10 = 7
So 83-22-7 is a valid CAS Registry Number.
InChI:InChI=1/C16H13NO9S3/c18-15-9-13(29(24,25)26)7-10-6-12(28(21,22)23)8-14(16(10)15)17-27(19,20)11-4-2-1-3-5-11/h1-9,17-18H,(H,21,22,23)(H,24,25,26)
83-22-7Relevant articles and documents
Development of a One-Step Synthesis of 5-Amino-1 H-imidazole-4-carboxamide
Qi, Ji,Yin, Jingjun,Li, Donghong,Chen, Song,Liu, Zhenguo
, p. 591 - 596 (2021/04/05)
An innovative and efficient synthesis of 5-amino-1H-imidazole-4-carboxamide (AIC) from commercially available hypoxanthine (～$30/kg) is described. The development of the key hydrolysis step and a practical isolation enables a highly efficient one-step manufacturing process for AIC with minimal environmental impact and significant reduction of production cost.
