PHENOTHIAZINE

Chemical Identification
CAS #	92-84-2
Formula	C₁₂H₉NS
Synonyms	dibenzothiazine; fenothiazine; thiodiphenylamine

Physical Properties
Physical description	Grayish-green to greenish-yellow solid.
Boiling point	700°F	Molecular weight	199.28
Freezing point/melting point	365°F	Vapor pressure	0 mmHg (approx)
Flash point		Vapor density
Specific gravity		Ionization potential
Lower explosive limit (LEL)		Upper explosive limit (UEL)
NFPA health rating		NFPA fire rating
NFPA reactivity rating		NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.)	2041
Sampling group
Sampler/Sampling media	GFF (37 mm), Type A/E [AP4003705]
Sampling time^*
Sampling volume (TWA)^*	100 L
Sampling flow rate (TWA)^*	1 L/min
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments	GC-NPD
Method reference	OSHA PV2048 (partially validated)
Notes	Protect samples from sunlight.
Special requirements

^* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Bulk/Wipe Method
Wipe Sampler/Sampling media
Bulk Method

On-Site Screening Techniques
Device
Model/Type
Sampling information (see manufacturer instructions)

**Exposure Limits**
OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak		NIOSH REL Up to 10-hour TWA (ST) STEL (C) Ceiling		ACGIH TLV© 8-hour TWA (ST) STEL (C) Ceiling		CAL/OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak
PEL-TWA		REL-TWA	5 mg/m³	TLV-TWA	5 mg/m³ [1968]	PEL-TWA	5 mg/m³
PEL-STEL		REL-STEL		TLV-STEL		PEL-STEL
PEL-C		REL-C		TLV-C		PEL-C
Skin notation	NA	Skin notation	Y	Skin notation	Y	Skin notation	Y
Notes: Not established		Notes:		Notes:		Notes:
Health factors: See NIH-NLM PubChem.		IDLH
Carcinogenic classifications:		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Phenothiazine

NIOSH: Pocket Guide to Chemical Hazards - Phenothiazine

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Phenothiazine. See annual publication for most recent information.
Jacobs, R.D., Hogsette, J.A. and Butcher, G.D.: Nematode parasites of poultry (and where to find them). Document No. PS18, Animal Science Department, Florida Cooperative Extension Services, University of Florida, Gainesville, 5 pp., 1997.
Mitchell, S.C.: The toxicity of phenothiazine. Drug Metabol. Drug Interact. 11(3): 201-235, 1994.
Mitchell, S.C., Kestell, P., Steventon, G.B. and Waring, R.H.: Fate of the anthelmintic, phenothiazine, in man. Xenobiotica 32(9): 771-782, 2002.
Pohanish, R.P. (editor): Phenothiazine. In, Sittig's Handbook of Toxic and Hazardous Chemicals and Carcinogens, Fourth Ed., Vol. 2. Norwich, NY: Noyes Publications, William Andrew Publishing, 2002, pp. 1824-1826.

Last Updated Date : 01/08/2021

PHENOTHIAZINE

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References