Brilliant Green Chemical Structure

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What is Brilliant Green

Brilliant green also known as Basic Green 1, is a derivative of triarylmethane dye. It is used as a fluorochrome, a histology dye, an antiseptic medication, an antibacterial agent, a toxin, and an environmental contaminant.

Macsen Laboratories is the leading manufacturer and supplier of Brilliant Green with ISO certification.
Name of Product Brilliant Green
IUPAC Name [4-[[4-(diethylamino)phenyl]-phenylmethylidene]cyclohexa-2,5-dien-1-ylidene]-diethylazanium;hydrogen sulfate
Synonyms Basic Green 1; Malachite green G, Emerald, Solid green, Diamond green G, Aniline green, Benzaldehyde green, Fast green J.
CAS No 633-03-4
Molecular Formula C27H34N2O4S
Molecular Weight 482.6 gm/mol
Color Index No. 42040
Pubchem CID 12449


SR. No Criteria Limit/Specification
1 Appearance (Color) Green or Blue-Green
2 Appearance (Form) Powder
3 Solubility (At 25°C) Soluble in water (100 mg/ml), ethanol (50 mg/ml), methanol, and 2-methoxyethanol (60 mg/ml)
4 Solubility (Color) (4 mg plus 4 mL, H2O) Blue-Green
5 Melting Point 210 °C (dec.)(lit.)
6 Carbon 58.0 - 68.0%
7 Nitrogen 4.9 - 6.1%
8 E1% (628 to 632 nm in 50% EtOH) > 1750
9 Dye Content > 90%


  • Brilliant Green has been used to color silk and wool.
  • It is recommended for the disinfection of fresh postoperative and post-traumatic scars, umbilical cords of infants, abrasions, cuts, and other staphylococcal infections. It’s meant for topical use.
  • Brilliant green, in the form of a diluted alcoholic solution, is commercially available as a topical antiseptic in the countries of Russia and Ukraine.
  • It is also used as an indicator and biological stain.
  • It also serves as a visible light-activated photocatalyst in organic synthesis.

Biological Stains | Classification, Examples & Uses

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