Vinyl toluene

May 1994
Immediately Dangerous to Life or Health Concentrations (IDLH)

CAS number: 25013–15–4

NIOSH REL: 100 ppm (480 mg/m3) TWA

Current OSHA PEL: 100 ppm (480 mg/m3) TWA

1989 OSHA PEL: Same as current PEL

1993-1994 ACGIH TLV: 50 ppm (242 mg/m3) TWA, 100 ppm (483 mg/m3) STEL

Description of substance: Colorless liquid with a strong, disagreeable odor.

LEL: . . 0.8% (10% LEL, 800 ppm)

Original (SCP) IDLH: 5,000 ppm

Basis for original (SCP) IDLH: Because no data on acute inhalation toxicity are available on which to base an IDLH for vinyl toluene, the chosen IDLH has been based on an analogy with styrene, which has an IDLH of 5,000 ppm.

Short-term exposure guidelines: None developed


Lethal concentration data:

Species Reference LC50(ppm) LCLo(ppm) Time Adjusted 0.5-hrLC (CF) Derived value
Mouse Krynskaya et al. 1969 615 —– 4 hr 1,230 ppm (2.0) 123 ppm

Lethal dose data:

Species Reference Route LD50(mg/kg) LDLo(mg/kg) Adjusted LD Derived value
MouseRat Krynskaya et al. 1969Yang & Mackerer 1990 oraloral ———- 3,1602,255 4,505 ppm3,215 ppm 451 ppm322 ppm

Other animal data: RD50 (mouse), 16.4 ppm [DeCeaurriz et al. 1981].

Human data: Although eye and nasal irritation have been noted, 400 ppm has been considered a safe concentration [ACGIH 1986].


1. ACGIH [1986]. Vinyl toluene. In: Documentation of the threshold limit values for substances in workroom air. 3rd ed. Cincinnati, OH: American Conference of Governmental Industrial Hygienists, pp. 275-276.

2. DeCeaurriz JC, Micillino JC, Bonnet P, Guenier JP [1981]. Sensory irritation caused by various industrial airborne chemicals. Toxicol Lett 9:137-143.

3. Krynskaya IL, Petrova LI, Guricheva ZG, Robachevskaya EG, Bukevich GM [1969]. Toxicity of vinyltoluene and its determination in air. Gig Sanit 34(7-9):334-339 (translated).

4. Yang JJ, Mackerer CR [1990]. Acute toxicologic testing of para-methylstyrene using rats and dogs. J Am Coll Toxicol, Part B 1:77 [Abstract].

Page last reviewed: December 4, 2014