Chlorophenol Red

Synonym(s):3′,3′-Dichlorophenolsulfonaphthalein;3,3′′-Dichlorophenolsulfonphthalein;Chlorophenol red

CAS NO.：4430-20-0
Empirical Formula: C19H12Cl2O5S
Molecular Weight: 423.27
MDL number: MFCD00005877
EINECS: 224-619-2
SAFETY DATA SHEET (SDS)
Update Date: 2024-02-18 22:21:08

What is Chlorophenol Red?

Chemical properties

reddish-brown to green or brown powder

The Uses of Chlorophenol Red

Chlorophenol Red; Dyes and metabolites. Is used in detection of nicotine, cannabinoids and drugs of abuse on vaping device surfaces and vaping liquid formulations.

What are the applications of Application

Chlorophenol Red is used to detect chlorine dioxide in drinking water

Purification Methods

Crystallise the dye from glacial acetic acid. It is yellow at pH 4.8 and violet at pH 6.7. [Beilstein 19/3 V 458.]

Properties of Chlorophenol Red

Melting point:	261 °C
Boiling point:	583.0±50.0 °C(Predicted)
Density	1.4641 (estimate)
storage temp.	Store below +30°C.
solubility	Solubility Sparingly soluble in water; soluble in ethanol
form	Liquid
pka	6.0(at 25℃)
color	White to cream
PH Range	4.8(yellow)-6.8(red)
Water Solubility	insoluble
λmax	572nm
BRN	354053
Major Application	Waveguide, sol-gel matrix, display device, tin electroplating process, inks, lubricants, detergents, preservation of cut flowers, cosmetics, identifying fresh and stale rice, determining acidity in wine, food storage, detecting lactic acid bacteria, enzyme assays, diagnosis of bacterial and fungal infection, oral hygiene products
CAS DataBase Reference	4430-20-0(CAS DataBase Reference)
EPA Substance Registry System	Phenol, 4,4'-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis[2-chloro- (4430-20-0)

Safety information for Chlorophenol Red

Signal word	Warning
Pictogram(s)	Exclamation Mark Irritant GHS07
GHS Hazard Statements	H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes	P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P280:Wear protective gloves/protective clothing/eye protection/face protection. P304+P340:IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P405:Store locked up.