5858-81-1

Basic information

• Product Name: LITHOL RUBIN BCA
• Synonyms: 11070red;2-Naphthalenecarboxylicacid,3-hydroxy-4-[(4-methyl-2-sulfophenyl)azo]-,disodiumsalt;3-hydroxy-4-((4-methyl-2-sulfophenyl)azo)-2-naphthalenecarboxylicacidisod;3-hydroxy-4-((4-methyl-2-sulfophenyl)azo)-2-naphthalenecarboxylicacidisodiumsalt;3-hydroxy-4-[(4-methyl-2-sulfophenyl)azo]-2-naphthalenecarboxylicacidisod;C.I.PigmentRed57;c.i.pigmentred57,disodiumsalt;cervenpigment57
• CAS NO: 5858-81-1
• Molecular Formula: C₁₈H₁₂N₂O₆S*2Na
• Molecular Weight: 430.34
• EINECS: 227-497-9
• Product Categories: Organics
• Mol File: 5858-81-1.mol
• Article Data: 1

Chemical Properties

• Boiling Point: 791.71℃[at 101 325 Pa]
• Appearance: /
• Density: 1.59[at 20℃]
• Vapor Pressure: 0Pa at 25℃
• Water Solubility: 116g/L at 25℃
• CAS DataBase Reference: LITHOL RUBIN BCA(CAS DataBase Reference)
• NIST Chemistry Reference: LITHOL RUBIN BCA(5858-81-1)
• EPA Substance Registry System: LITHOL RUBIN BCA(5858-81-1)

Safety Data

• Hazard Codes: Xi
• Statements: 41
• Safety Statements: 26-39
• Hazardous Substances Data: 5858-81-1(Hazardous Substances Data)

Usage

Description

LITHOL RUBIN BCA, also known as Disodium 3-Hydroxy-4-[(4-methyl-2-sulfonatophenyl)diazenyl]-2-naphthoate, is a synthetic dye with a vibrant red color. It is a water-soluble compound that is commonly used in various industries due to its color properties and stability.

Uses

Used in Cosmetic Industry:
LITHOL RUBIN BCA is used as a colorant for solid cosmetic powders, providing a vibrant red hue and enhancing the visual appeal of the product. Its water solubility and stability make it an ideal choice for cosmetic formulations.

Flammability and Explosibility

Notclassified

InChI:InChI=1/C18H14N2O6S.2Na/c1-10-6-7-14(15(8-10)27(24,25)26)19-20-16-12-5-3-2-4-11(12)9-13(17(16)21)18(22)23;;/h2-9,21H,1H3,(H,22,23)(H,24,25,26);;/q;2*+1/p-2

Synthetic route

3-Hydroxy-2-naphthoic acid (92-70-6) + [15N]-5-methyl-2-diazobenzenesulphonic acid hydrochloride → D&C red no. 6 (5858-81-1)

Conditions	Yield
Stage #1: 3-Hydroxy-2-naphthoic acid With sodium hydroxide In water at 50℃; Stage #2: [15N]-5-methyl-2-diazobenzenesulphonic acid hydrochloride In water at 15 - 20℃; for 2h;

D&C red no. 6 (5858-81-1) → calcium bis[2-(3-carboxy-2-hydroxynaphthylazo)-5-methylbenzenesulfonate]

Conditions	Yield
With calcium chloride In water at 25 - 35℃; for 1.5 - 2h; Product distribution / selectivity;

Upstream product

• 92-70-6 3-Hydroxy-2-naphthoic acid 

Relevant articles and documents

DRY C.I. PIGMENT RED 57:1, DRY PIGMENT COMPOSITION AND METHOD FOR PRODUCING THEM

The present invention provides a dried C.I. Pigment Red 57:1, which is characterized in that a BET specific surface area as measured by a nitrogen adsorption method is from 60 to 110 m 2 /g and a total volume of pores having a diameter within a range from 0.1 to 3.0 μm as measured by a mercury penetration method is from 1.30 to 2.00 ml/g, or a dried pigment composition comprising rosins and a C.I. Pigment Red 57:1. The pigment is obtained by adding an aqueous solution containing a 2-(3-carboxy-2-hydroxynaphthylazo)-5-methylbenzenesulfonic acid water-soluble salt to an aqueous solution containing an inorganic calcium compound enough to convert the entire water-soluble salt into a calcium salt, and converting the mixture into a lake, followed by heating, filtration and further drying.