# NIOSH Pocket Guide to Chemical Hazards
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. | 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
Personal Protection & Sanitation 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 To be added later
Exposure Routes inhalation, ingestion, skin and/or eye contact
Symptoms Irritation eyes, skin, respiratory system
Target Organs Eyes, skin, respiratory system
See also: INTRODUCTION