Precursor
Product CodeCompoundCas NoMetal Cont.(%)ColourMolecular WeightApplication

S136/16903-35-8

Gold Chloride

\mathbf{AuCl_{3}}

16903-35-8

50

Orange

303

Alkylation

S137/16903-35-8

ChloroAuric Acid

\mathbf{HAuCl_{4}}

16903-35-8

40

Orange

340

Alkylation

S138/14243-64-2

Chlorotris(Triphenylphosphine)Gold

\mathbf{C_{54}H_{45}ClP_{3}Au}

14243-64-2

39

Yellow

1018

Cyclisation of O-Propargyl Carbamates

S139/67859-69-2

Sodium Gold Sulfite

\mathbf{AuNaSO_{3}}

67859-69-2

46

Yellow

300

NonCyanide Plating

S140/10294-31-2

Gold Iodide

\mathbf{Aul}

10294-31-2

58

Greenish Yellow

323

Organo Iodide group addition