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Captan

General Description

  • Synonyms: cis-N-[(Trichloromethyl)thio]-4-cyclohexene-1.2-dicarboximide; Merpan; Orthocide; Pillarcap
  • OSHA IMIS Code Number: 0529
  • Chemical Abstracts Service (CAS) Registry Number: 133-06-2
  • NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: GW5075000; 28726
  • Department of Transportation Regulation Number (49 CFR 172.101) and Emergency Response Guidebook: NA9099 Poison
  • NIOSH Pocket Guide to Chemical Hazards, Captan: chemical description, physical properties, potentially hazardous incompatibilities, and more
  • Chemical Description and Physical Properties:
    • solid
    • molecular weight: 301
    • melting point: 175°C

Exposure Limits

  • American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): 5 mg/m3 TWA (Inhalable Fraction); Appendix A3 (Confirmed Animal Carcinogen with Unknown Relevance to Humans); SEN
  • National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 5 mg/m3 TWA Potential Carcinogen

Health Factors

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):
  • OSHA Versatile Sampler (OVS-2) - 13 mm XAD-2 tube (270/140 mg sections, 20/60 mesh) with Glass Fiber Filter enclosed
  • maximum volume: 60 Liters
  • maximum flow rate: 1.0 L/min
  • current analytical method: High Performance Liquid Chromatography; HPLC/UV
  • method reference: 2 (OSHA In-House File)
  • method classification: Partially Validated
  • note: OSHA personnel may obtain sampling tubes from the Salt Lake Technical Center (SLTC).
Wipe Sampling Method:
  • Glass Fiber Filter
Bulk Method:
  • Limit the amount of bulk submitted to one gram or one mL.
Conditions:

Column: Zorbax ODS mobile phase: 45% Acetonitrile/55% water ultra violet detector: 214 retention time: 13.7 min detection limit: 6 ng/injection

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