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4,4'-Methylenebis(2-chloroaniline)

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Synonyms & Trade Names
DACPM, 3,3'-Dichloro-4,4'-diaminodiphenylmethane, MBOCA, 4,4'-Methylenebis(o-chloro aniline), 4,4'-Methylenebis(2-chlorobenzenamine), MOCA
CAS No.
101-14-4
RTECS No.
CY1050000
DOT ID & Guide
Formula
CH₂(C₆H₄ClNH₂)₂
Conversion
IDLH
Ca [N.D.]
See: IDLH INDEX
Exposure Limits
NIOSH REL
Ca TWA 0.003 mg/m3 [skin] See Appendix A
OSHA PEL
none See Appendix G
Measurement Methods
OSHA 24 , 71
See: NMAM or OSHA Methods
Physical Description
Tan-colored pellets or flakes with a faint, amine-like odor.
Molecular Weight
267.2
Boiling Point
?
Melting Point
230°F
Solubility
Slight
Vapor Pressure
(77°F): 0.00001 mmHg
Ionization Potential
?
Specific Gravity
1.44
Flash Point
?
Upper Explosive Limit
?
Lower Explosive Limit
?
Incompatibilities & Reactivities
Chemically-active metals (e.g., potassium, sodium, magnesium, zinc)
Exposure Routes
inhalation, skin absorption, ingestion, skin and/or eye contact
Symptoms
hematuria (blood in the urine), cyanosis, nausea, methemoglobinemia, kidney irritation; [potential occupational carcinogen]
Target Organs
Liver, blood, kidneys
Cancer Site
[in animals: liver, lung & bladder tumors]
Personal Protection/Sanitation
(See protection codes)
Skin:Prevent skin contact
Eyes:Prevent eye contact
Wash skin:When contaminated/Daily
Remove:When wet or contaminated
Change:Daily
Provide:Eyewash, Quick drench
First Aid
(See procedures)
Eye:Irrigate immediately
Skin:Soap flush immediately
Breathing:Respiratory support
Swallow:Medical attention immediately
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

See also
INTRODUCTION   ICSC CARD: 0508
Page last reviewed: October 30, 2019
Content source: National Institute for Occupational Safety and Health