Drometrizole

Synonym(s):2-(2H-Benzotriazol-2-yl)-p-cresol;2-(2-Hydroxy-5-methylphenyl)benzotriazole

CAS NO.：2440-22-4
Empirical Formula: C13H11N3O
Molecular Weight: 225.25
MDL number: MFCD00022903
EINECS: 219-470-5
SAFETY DATA SHEET (SDS)
Update Date: 2024-12-18 14:15:30

What is Drometrizole?

Chemical properties

Light yellow powder

The Uses of Drometrizole

Drometrizole is an intermediate reactant in the synthesis of UV light absorbers for polyester fibers.

The Uses of Drometrizole

An ultraviolet light absorber for stabilizing plastics and other organic materials against discoloration and deterioration.

The Uses of Drometrizole

2(2-Hydroxy-5-methylphenyl)benzotriazol is an UV adsorber for use in plastics, cosmetics, dental materials, acrylic materials, dyes, etc.

What are the applications of Application

2-(2-Hydroxy-5-methylphenyl)benzotriazole is a UV light absorber synthesis intermediate

Definition

Drometrizole is a member of triazoles.

What are the applications of Application

Intermediate reactant in the synthesis of UV light absorbers for polyester fibers
Reactant for synthesis of:
Benzotriazole UV absorbers with a blocked hydroxy group for us in UV curable paint
Maleimide-bound benzotriazole monomer to use for emulsion polymerization
Used in:
Microstereophotolithography and shape memory alloy for fabrication of miniaturized actuators
PVS and wood / PVC composites as a stabilizer
Acrylonitrile-butadiene-styrene as a UV absorber.

Flammability and Explosibility

Not classified

Properties of Drometrizole

Melting point:	125.5-129.5 °C(lit.)
Boiling point:	bp10 225°
Density	1.38
vapor pressure	0Pa at 20℃
refractive index	1.5600 (estimate)
Flash point:	54°C
storage temp.	15-25°C
solubility	DMSO (Slightly), Methanol (Slightly)
form	Solid
pka	8.15±0.43(Predicted)
color	Off-White to Pale Yellow
Water Solubility	173μg/L at 20℃
Merck	14,3447
Stability:	Hygroscopic
CAS DataBase Reference	2440-22-4(CAS DataBase Reference)
NIST Chemistry Reference	Phenol, 2-(2H-benzotriazol-2-yl)-4-methyl-(2440-22-4)
EPA Substance Registry System	2-(2H-Benzotriazol-2-yl)-p-cresol (2440-22-4)

Safety information for Drometrizole

Signal word	Warning
Pictogram(s)	Exclamation Mark Irritant GHS07 Environment GHS09
GHS Hazard Statements	H317:Sensitisation, Skin H410:Hazardous to the aquatic environment, long-term hazard
Precautionary Statement Codes	P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P272:Contaminated work clothing should not be allowed out of the workplace. P273:Avoid release to the environment. P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of soap and water. P333+P313:IF SKIN irritation or rash occurs: Get medical advice/attention.