37498-62-7 Usage
General Description
2-[(2-hydroxy-1-naphthyl)azo]-5-methylbenzenesulphonic acid, also known as Naphthol AS-MX, is a chemical compound commonly used as a dye intermediate in the textile industry. It is a water-soluble yellowish-orange powder that is typically produced by reacting 2-naphthol with a diazonium salt of 5-methylbenzenesulfonic acid. Naphthol AS-MX is known for its strong affinity to various textiles, making it a popular choice for dyeing cotton, silk, wool, and nylon. The compound also has applications in the production of pigments, paints, and printing inks. However, it is important to handle this chemical with caution as it may pose health and environmental risks if not managed properly.
Check Digit Verification of cas no
The CAS Registry Mumber 37498-62-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,7,4,9 and 8 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 37498-62:
(7*3)+(6*7)+(5*4)+(4*9)+(3*8)+(2*6)+(1*2)=157
157 % 10 = 7
So 37498-62-7 is a valid CAS Registry Number.
InChI:InChI=1/C17H14N2O4S/c1-11-6-8-14(16(10-11)24(21,22)23)18-19-17-13-5-3-2-4-12(13)7-9-15(17)20/h2-10,18H,1H3,(H,21,22,23)/b19-17-
37498-62-7Relevant articles and documents
P.R. 254 pigment preparation for use in color filters
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Page/Page column 20, (2011/04/13)
The invention provides a pigment preparation comprising (a) C.I. Pigment Red 254 with an average particle size d50 of not more than 100 nm;(b) 0.1% to 30% by weight, based on the weight of the PR 254, of one or more dispersants from the group of the unlaked sulfo-containing monoazo dyes; and(c) 0.1% to 30% by weight, based on the weight of the PR 254, of a basic pigment dispersant of the formula (V)
