General

    Synonyms: TMTD, tetramethyl thiuram disulfide, fernacol, thiuram, tetramethylenethiuram disulfide, tetramethylthioperoxydicarbonicdiamine, tetramethylthirium disulfide, bis(dimethylthiocarbamyl)disulfide, tetramethylthiuram disulfide, bis(dimethylthiocarbamoyl)Disulfide, tetramethylthioperoxydicarbonic diamide, tetramethyl thiouram disulfide, thioperoxydicarbonic diamide, tetramethyl-; alpha,alpha'-dithiobis(dimethylthio)formamide, N,N'-(dithiodicarbonothioyl)bis(N-methylmethanamine), tetramethylthiuram bisulfide, 1,1'-dithiobis(N,N-dimethylthioformamide), accelerator thiuram, bis((dimethylamino)carbonothioyl) disulfide, methyl thiram, methyl thiuramdisulfide, tetramethyldiurane sulfite, tetramethylenethiuram disulfide, tetramethylthiocarbamoyldisulfide, tetramethylthiuram, N,N-tetramethylthiuram disulfide, N,N,N',N'-tetramethylthiuram disulfide, tetramethylthiuran disulfide, tetrathiuram disulfide, Tetramethylthioperoxydicarbonic diamide, numerous trade names
    Molecular formula: C6H12N2S4
    CAS No: 137-26-8
    EINECS No: 205-286-2
    Annex I Index No: 006-005-00-4

Physical data

    Appearance: colourless or cream powder or crystals with an unpleasant smell
    Melting point: 155 - 156 C
    Boiling point: 129 C at 20 mm Hg
    Vapour density:
    Vapour pressure:
    Density (g cm-3): 1.43
    Flash point:
    Explosion limits:
    Autoignition temperature:

Stability

    Stable. Incompatible with acids, reducing agents and oxidizing agents.

Toxicology

    Toxic by inhalation, through skin contact or if swallowed. Skin, eye and respiratory irritant. Possible mutagen. Possible teratogen. May cause damage to CNS. May cause sensitization.

    Toxicity data
    (The meaning of any abbreviations which appear in this section is given here.)
    ORL-RAT LD50 560 mg kg-1
    SKN-RBT LD50 > 5000 mg kg-1

    Risk phrases
    (The meaning of any risk phrases which appear in this section is given here.)
    R23 R24 R25 R36 R37 R40 R43 R50 R53.

    Hazard statements
    H302 H315 H317 H319 H332 H373 H410.

Environmental information

    Very toxic to aquatic organisms - may cause long-term environmental damage.

Transport information

    (The meaning of any UN hazard codes which appear in this section is given here.)
    UN No 4033. Hazard class 9. Packing group III.

Personal protection

    Safety glasses, gloves, adequate ventilation.

    Safety phrases
    (The meaning of any safety phrases which appear in this section is given here.)
    S2 S26 S36 S37 S60 S61.