Synonyms: Methyl 1-(butylcarbamoyl)-2-benzimidazolecarbamate; Benlate; Tersan 1991

OSHA IMIS Code Number: B405

Chemical Abstracts Service (CAS) Registry Number: 17804-35-2

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: DD6475000; 14849

Chemical Description and Physical Properties:

white crystalline solid, essentially insoluble in water or oil
formulation: 50% wettable powder. Soluble in xylene, acetone, DMF, and chloroform.
molecular weight: 290

American Conference of Governmental Industrial Hygenists (ACGIH) Threshold Limit Value (TLV): 0.84 ppm, 10 mg/m³ TWA; Appendix A4 (Not Classifiable as a Human Carcinogen)

Health Effects: LD50 (oral, mammal) 10 g/kg; Systemic fungicide

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. Sampler preceded by 10 mm Nylon Cyclone
  analytical solvent: Acetonitrile
  maximum volume: 60 Liters
  maximum flow rate: 1.7 L/min
  current analytical method: High Performance Liquid Chromatography; HPLC/UV
  method reference: 2 (OSHA In-House File)
  method classification: Not Validated

Conditions: column: Chromasil C18 5 um mobile phase: 70% acetonitrile/30% water; 1 mL/min ultra violet detector: 286, 218 nm retention time: 3.5 min detection limit: 10 ng/inj

Wipe Sampling Method:

• sampling media: Glass Fiber Filter
  

Bulk Method:

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