16013-44-8

Basic information

• Product Name: 4-[(5-chloro-4-methyl-2-sulphophenyl)azo]-3-hydroxy-2-naphthoic acid
• Synonyms: 4-[(5-chloro-4-methyl-2-sulfophenyl)azo]-3-hydroxy-2-Naphthalenecarboxylic acid;pigment red no. 48;pigmentredno.48;C.I. PIGMENT RED 48);2-Naphthalenecarboxylic acid, 4-(2-(5-chloro-4-methyl-2-sulfophenyl)diazenyl)-3-hydroxy-;Einecs 240-150-6;4-[(5-chloro-4-methyl-2-sulphophenyl)azo]-3-hydroxy-2-naphthoic acid;2-Naphthalenecarboxylic acid, 4-(5-chloro-4-methyl-2-sulfophenyl)azo-3-hydroxy-
• CAS NO: 16013-44-8
• Molecular Formula: C₁₈H₁₃ClN₂O₆S
• Molecular Weight: 420.82362
• EINECS: 240-150-6
• Mol File: 16013-44-8.mol
• Article Data: 2

Chemical Properties

• Boiling Point: °Cat760mmHg
• Flash Point: °C
• Appearance: /
• Density: 1.59g/cm³
• Refractive Index: 1.695
• CAS DataBase Reference: 4-[(5-chloro-4-methyl-2-sulphophenyl)azo]-3-hydroxy-2-naphthoic acid(CAS DataBase Reference)
• NIST Chemistry Reference: 4-[(5-chloro-4-methyl-2-sulphophenyl)azo]-3-hydroxy-2-naphthoic acid(16013-44-8)
• EPA Substance Registry System: 4-[(5-chloro-4-methyl-2-sulphophenyl)azo]-3-hydroxy-2-naphthoic acid(16013-44-8)

Safety Data

• Hazardous Substances Data: 16013-44-8(Hazardous Substances Data)

Usage

InChI:InChI=1/C18H13ClN2O6S/c1-9-6-15(28(25,26)27)14(8-13(9)19)20-21-16-11-5-3-2-4-10(11)7-12(17(16)22)18(23)24/h2-8,22H,1H3,(H,23,24)(H,25,26,27)

Upstream product

• 88-51-7 6-amino-4-chloro-meta-toluenesulfonic acid 
• 92-70-6 3-Hydroxy-2-naphthoic acid 

Relevant articles and documents

A kind of machine surface precipitation process for industrial production of oxide red pigment and its desk method for detecting precipitation

An industrial production method for a red with small precipitation on a machine surface and a method for detecting precipitation on a machine surface and belong to the technical field of pigment synthesis and detection. Amino chlorotoluene sulfonic acid sodium salt is subjected to acidification to obtain a turbid liquid; a sodium nitrite water solution is added to achieve diazotization so as to obtain a diazotized solution; the diazotized solution and 3-Hydroxy-2-naphthoic acid are subjected to coupled reaction with existence of a dispersant, and the obtained product is laked to obtain a red. Before laking, the dispersant is added to coat the pigment so as to obstruct growth of the pigment crystal form, the dispersity is improved, the applicability of the machine surface precipitation during application of the blue-ray red to plastics is remarkably improved, and the economic benefits are improved; the reaction conditions are mild, the requirements on equipment are low, and the reaction time is short; the dispersant is relatively common, the application difficulty of a modifier is relatively low, the performance of the obtained blue-ray red is good, the heat resistance can reach 220-230 DEG C, and the transference resistance is of 4 grade.