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Allyl isothiocyanate
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General Description
    Synonyms: Allyl isosulfocyanate; 3-Isothiocyanato-1-propene; Isothiocyanic acid, allyl ester; Mustard Oil; 2-Propenyl isothiocyanate

    OSHA IMIS Code Number: A107

    Chemical Abstracts Service (CAS) Registry Number: 57-06-7

    NIOSH, Registry of Toxic Effects (RTECS) Identification Number: NX8225000

    Department of Transportation Regulation Number (49 CFR 172.101) and guide [2008 Emergency Response Guidebook, 2.5 MB PDF]: 1545 (stabilized) 155

    Chemical Description and Physical Properties: colorless to pale yellow, oily liquid, with pungent odor.
      molecular formula: C4H5NS
      molecular weight: 99.16
      boiling point: 148-154°C
      flash point: 46°C closed cup
      melting point: -80°C
      vapor pressure: 9.976 mm Hg @ 38.3°C
Health Factors
    International Agency for Research on Cancer (IARC) carcinogenic classification: Group 3, Not classifiable as to its carcinogenicity to humans [106 KB, PDF, 12 pages]

    Potential symptoms: Irritation of eyes, skin, nose, throat; eye, skin burns; INGES ACUTE: Burns in mouth, throat and stomach. EXPOS CHRONIC: Cough, bronchial irritation and pneumonia; burns in nose and mouth, erosion of teeth; dermatitis; conjunctivitis.

    Health Effects: Irritation-Eyes, Nose, Throat, Bronchi, Skin---Marked (HE14)

    Affected organs: Eyes, skin, respiratory system

    Literature Basis:
Monitoring Methods used by OSHA
    Laboratory Sampling/Analytical Method:

    • sampling media: Charcoal Tube (100/50 mg sections; 20/40 mesh)
      analytical solvent: (99:1) Carbon Disulfide:Dimethylformamide
      maximum volume: 20 Liters   maximum flow rate: 0.1 L/min.
      current analytical method: Gas Chromatography; GC/FID
      method reference: OSHA SLTC In-House File
      method classification: Not Validated

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