Safety (MSDS) data for metronidazole

Safety (MSDS) data for metronidazole

Hazard: harmful


    Synonyms: 2-methyl-5-nitro-1H-imidazole-1-ethanol, 1-(beta-hydroxyethyl)-2-methyl-5-nitroimidazole, acromona, anagiardil, arilin, deflamon, efloran, elyzol, entizol, flagesol, flagil, flagyl, fossyol, gineflavir, klio, medazol, metro gel, metrogyl, metron, protostat, orvagil, trichazol, vagilen, vagimid, zadstat, numerous further trade names
    Molecular formula: C6H9N3O3
    CAS No: 443-48-1
    EINECS No: 207-136-1

Physical data

    Appearance: white to slightly yellow crystalline powder
    Melting point: 158 - 162 C
    Boiling point:
    Vapour density:
    Vapour pressure:
    Density (g cm-3):
    Flash point:
    Explosion limits:
    Autoignition temperature:
    Water solubility:


    Stable. Incompatible with strong oxidizing agents.


    Harmful if swallowed, inhaled or absorbed through the skin. Irritant. Limited evidence that this material may act as a carcinogen.

    Toxicity data
    (The meaning of any toxicological abbreviations which appear in this section is given here.)
    ORL-RAT LD50 3000 mg kg-1
    ORL-MUS LD50 3800 mg kg-1
    SCU-MUS LD50 3640 mg kg-1

    Risk phrases
    (The meaning of any risk phrases which appear in this section is given here.)
    R20 R21 R22 R40.

Transport information

    (The meaning of any UN hazard codes which appear in this section is given here.)
    Non-hazardous for air, sea and road freight.

Personal protection

    Safety glasses, adequate ventilation.

    Safety phrases
    (The meaning of any safety phrases which appear in this section is given here.)
    S36 S37.

[Return to Physical & Theoretical Chemistry Lab. Safety home page.]

This information was last updated on June 20, 2005. We have tried to make it as accurate and useful as possible, but can take no responsibility for its use, misuse, or accuracy. We have not verified this information, and cannot guarantee that it is up-to-date.