NIOSH Publication No. 2005-151:

NIOSH Pocket Guide to Chemical Hazards

September 2005

4,4'-Thiobis(6-tert-butyl-m-cresol)

CAS
96-69-5

[CH3(OH)C6H2C(CH3)3]2S

RTECS
GP3150000
Synonyms & Trade Names

4,4'-Thiobis(3-methyl-6-tert-butylphenol); 1,1'-Thiobis(2-methyl-4-hydroxy-5-tert-butylbenzene)
DOT ID & Guide

Exposure
Limits

NIOSH REL: TWA 10 mg/m3 (total) TWA 5 mg/m3 (resp)
OSHA PEL: TWA 15 mg/m3 (total) TWA 5 mg/m3 (resp)
IDLH
N.D. See: IDLH INDEX
Conversion
Physical Description
Light-gray to tan powder with a slightly aromatic odor.
MW: 358.6
BP: ?
MLT: 302°F
Sol: 0.08%
VP: 0.0000006 mmHg
IP: ?

Sp.Gr: 1.10
Fl.P: 420°F
UEL: NA
LEL: NA

Combustible Solid
Incompatibilities & Reactivities

None reported
Measurement Methods
NIOSH 0500; 0600
See: NMAM or OSHA Methods
Personal Protection & Sanitation
(See protection)
Skin: No recommendation
Eyes: No recommendation
Wash skin: No recommendation
Remove: No recommendation
Change: No recommendation

First Aid
(See procedures)
Eye: Irrigate immediately

Breathing: Fresh air
Swallow: Medical attention immediately
Respirator Recommendations
Not available.
Important additional information about respirator selection
Exposure Routes
inhalation, ingestion, skin and/or eye contact
Symptoms
Irritation eyes, skin, respiratory system
Target Organs
Eyes, skin, respiratory system
See also: INTRODUCTION