132-31-0

Basic information

• Product Name: INDOPHENOL BLUE
• Synonyms: INDOPHENOL BLUE;INDOPHENOL;CI 49700;ALPHA-NAPHTHOL BLUE;N-(4-DIMETHYLAMINOPHENYL)-1,4-NAPHTHOQUINONEIMINE;N-(P-DIMETHYLAMINO)PHENYL-1,4-NAPHTHOQUINONEIMINE;4-[[4-(dimethylamino)phenyl]imino]-1(4h)-naphthalenon;4-[[4-(dimethylamino)phenyl]imino]naphthalen-1(4H)-one
• CAS NO: 132-31-0
• Molecular Formula: C₁₈H₁₆N₂O
• Molecular Weight: 276.33
• EINECS: 205-056-1
• Product Categories: G-H-I;Stains and Dyes;Stains&Dyes, A to
• Mol File: 132-31-0.mol
• Article Data: 0

Chemical Properties

• Melting Point: 168-170 °C(lit.)
• Boiling Point: 427.7 °C at 760 mmHg
• Flash Point: 212.5 °C
• Appearance: /
• Density: 1.11 g/cm³
• Vapor Pressure: 1.61E-07mmHg at 25°C
• Refractive Index: 1.604
• PKA: 3.18±0.12(Predicted)
• Stability: Stable. Incompatible with strong oxidizing agents.
• BRN: 2379761
• CAS DataBase Reference: INDOPHENOL BLUE(CAS DataBase Reference)
• NIST Chemistry Reference: INDOPHENOL BLUE(132-31-0)
• EPA Substance Registry System: INDOPHENOL BLUE(132-31-0)

Safety Data

• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 26-36
• WGK Germany: 3
• Hazardous Substances Data: 132-31-0(Hazardous Substances Data)

Usage

Chemical Properties

black powder

Uses

Indophenol is an artificial blue metachromatic dye. The formation of Indophenol can be used to determine ammonia and paracetamol by spectrophotometry. Dyes and metabolites.

InChI:InChI=1/C18H16N2O/c1-20(2)14-9-7-13(8-10-14)19-17-11-12-18(21)16-6-4-3-5-15(16)17/h3-12H,1-2H3/b19-17+

Upstream product

• 90-15-3 α-naphthol 
• 99-98-9 4-amino-N,N-dimethylaniline 
• 2050-49-9 2,4-dibromo-1-naphthol 
• 604-44-4 4-chloronaphthalen-1-ol 
• 130-15-4 [1,4]naphthoquinone 
• 5435-44-9 (E)-3-Ureido-but-2-enoic acid ethyl ester 
• 90-94-8 bis(p-dimethylaminophenyl)methanone 
• 10025-87-3 trichlorophosphate 
• 50-99-7 glucose 
• 138-89-6 p-dimethylaminonitrosobenzene 
• 7732-18-5 water 
• 56-23-5 tetrachloromethane 
• 42344-05-8 4-nitroso-N,N-dimethylaniline hydrochloride 
• 871876-73-2 2,3-dimethyl-4-nitroso-aniline 

Downstream Products

• 130-15-4 [1,4]naphthoquinone 
• 83-72-7 2-hydroxynaphtho-1,4-quinone 

Related news

Determination of ammonia in water and industrial effluent streams with the INDOPHENOL BLUE (cas 132-31-0) method using sequential injection analysis09/29/2019

A suitable sequential injection analysis (SIA) analyser to monitor water quality in terms of the ammonia content in water and industrial effluent streams was developed. The system is fully computerised and is able to monitor ammonia in samples at a frequency of ca. 16 samples per hour with a re...detailed