Methoxychlor
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CAS
72-43-5
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(C6H4OCH3)2CHCCl3
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RTECS
KJ3675000
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Synonyms & Trade Names
p,p'-Dimethoxydiphenyltrichloroethane; DMDT; Methoxy-DDT; 2,2-bis(p-Methoxyphenyl)-1,1,1-trichloroethane; 1,1,1-Trichloro-2,2-bis-(p-methoxyphenyl)ethane
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DOT ID & Guide
2761 / 151 (organochlorine pesticide, solid, toxic)
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Exposure
Limits
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NIOSH REL: Ca See Appendix A
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OSHA PEL†: TWA 15 mg/m3
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IDLH
Ca [5000 mg/m3]
See: 72435
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Conversion
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Physical Description
Colorless to light-yellow crystals with a slight, fruity odor. [insecticide]
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MW: 345.7
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BP: Decomposes
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MLT: 171°F
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Sol: 0.00001%
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VP: Very low
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IP: ?
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Sp.Gr: 1.41
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Fl.P: ?
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UEL: ?
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LEL: ?
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Combustible Solid, but difficult to burn.
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Incompatibilities & Reactivities
Oxidizers
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Measurement Methods
NIOSH S371 (II-4); OSHA PV2038
See: NMAM or OSHA Methods |
Personal Protection & Sanitation (See protection)
Skin: Prevent skin contact
Eyes: No recommendation
Wash skin: When contaminated/Daily
Remove: When wet or contaminated
Change: Daily
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First Aid (See procedures)
Skin: Soap wash
Breathing: Fresh air
Swallow: Medical attention immediately
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Respirator Recommendations
NIOSH
At concentrations above the NIOSH REL, or where there is no REL, at any detectable concentration:
(APF = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode
(APF = 10,000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus
Escape:
(APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister having an N100, R100, or P100 filter. Click here for information on selection of N, R, or P filters./Any appropriate escape-type, self-contained breathing apparatus
Important additional information about respirator selection
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Exposure Routes
inhalation, ingestion
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Symptoms
In animals: fasciculation, trembling, convulsions; kidney, liver damage; [potential occupational carcinogen]
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Target Organs
central nervous system, liver, kidneys
Cancer Site
[in animals: liver & ovarian cancer]
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See also: INTRODUCTION See ICSC CARD: 1306
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