NAME: Benomyl (Respirable Fraction)
SYNONYM(s): Methyl 1-(butylcarbamoyl)-2-benzimidazolecarbamate; Benlate; Tersan 1991
IMIS: B405
CAS: 17804-35-2
NIOSH: RTECS DD6475000; 14849
DESCRIPTION:
White crystalline solid, essentially insoluble in water or oil. Formulation: 50% wettable powder. Soluble in xylene, acetone, DMF, and chloroform.
MW: 290
Exposure Limits
ACGIH TLV: 0.84 ppm, 10 mg/m3 TWA; Appendix A4 (Not Classifiable as a Human Carcinogen)
Health Factors
HEALTH EFFECTS: LD50 (oral, mammal) 10 g/kg; Systemic fungicide
Monitoring
PRIMARY SAMPLING/ANALYTICAL METHOD (SLC1):
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
ANL SOLVENT: Acetonitrile
MAX V: 60 Liters MAX F: 1.7 L/min
ANL 1: High Performance Liquid Chromatography; HPLC/UV
REF: 2 (OSHA In-House File)
CLASS: Not Validated
COND: Chromasil C18 5 um column; 70% acetonitrile/30% water; 1 mL/min; UV 286, 218 nm; Ret time 3.5 min; DL 10 ng/inj
WIPE:
Yes, with Glass Fiber Filter.
BULK METHOD:
Limit the amount of bulk submitted to one gram or one mL.
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