Dye|Dye intermediates|Fluorescent Brightener|pigment dye

Name:C.I.Pigment Red 53:2,C.I.15585:2

Molecular Structure: Single azo

C.I.Pigment Red 53:2,C.I.15585:2,CAS 67990-35-6,376.81,C17H13ClN2O4S,calcium Red Lake C

Molecular Formula:C₁₇H₁₃ClN₂O₄S

Molecular Weight: 376.81

CAS Registry Number:67990-35-6

Manufacturing Methods :2-Amino-5-chloro-4-methylbenzenesulfonic acid diazotization, and Naphthalen-2-ol coupling, and then into calcium salt.

Properties and Applications: red. Slightly soluble in water and ethanol, not soluble in acetone and benzene. In concentrated sulfuric acid for cherry red, dilution after brown light red precipitation; In 10% sodium hydroxide solution slightly soluble, for yellow; In the potassium hydroxide ethanol solution for dark brown light red. Pigment solution to join concentrated hydrochloric acid red precipitation; Join concentrated sodium hydroxide solution have brick red precipitation

List of Suppliers:

Calcium Red Lake C (Magruder Color Company Inc.)

Pigment Red 53:2(CPMA)