Synonyms: o-(4-Bromo-2,5-dichlorophenyl) o-methylphenylphosphoro-thioate; Leptophos; MBCP; Abor; VCS 506

OSHA IMIS Code Number: P128

Chemical Abstracts Service (CAS) Registry Number: 21609-90-5

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: TB1720000; 58497

Chemical Description and Physical Properties:

tan waxy solid
melting point: 55-67°C

Health Effects: LD50 (oral, rat) 43-53 mg/kg

Primary Laboratory Sampling/Analytical Method (SLC1):

• sampling media: OSHA Versatile Sampler (OVS-2) - 13 mm XAD-2 tube (270/140 mg sections, 20/60 mesh) with Glass Fiber Filter enclosed
  analytical solvent: Toluene
  maximum volume: 480 Liters
  maximum flow rate: 1.0 L/min
  current analytical method: Gas Chromatography; GC/FPD
  method reference: 2 (OSHA In-House File)
  method classification: Partially Validated
  note: OSHA personnel may obtain sampling tubes from the Salt Lake Technical Center.

Conditions: GC/FPD; Toluene extraction; Column (45 m x 0.2 mm i.d.) SE-54 0.25 um film; Oven T 160-240 deg C; Inj T 250 deg. C; Det T 250 deg. + C; Retention time 21.1 min; DL 0.029 ng/inj; C/P TT

Wipe Sampling Method:

• sampling media: Glass Fiber Filter

Bulk Method:

• Limit the amount of bulk submitted to one gram or one mL.

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