Green S primarily comes in the form of dark green granules or fine powder. The conditions under which its uses should be avoided include:
| No. | Molecular Description | Composition |
| 1. | Total colour/Assay, percent by Mass, min. | 80 |
| 2. | Water-insoluble matter, percent by mass, Max. | 0.2 |
| 3. | Combined ether extracts, percent by mass, Max. | 0.2 |
| 4. | Subsidiary dyes, percent by mass, Max. | 1 |
| 5. | Dye intermediates, percent by mass, max. Leuco basev 4,4'- Bis (Dimehtyl amino )-benzhydril alcohol 4,4-Bis (dimethyl amino) – benzophenon 3- Hydroxy naphthalene , 2-7 - dislfunic acid |
05.00 00.10 00.10 00.20 |
| 6. | Unsulfonated primary aromatic amine (calculated as aniline) percent by mass, max. | 0.01 |
| 7. | Lead, mg/kg, Max. | 10 |
| 8. | Arsenic, mg/kg, Max. | 3 |
| 9. | Heavy metals, (as pb) mg/kg, max | 40 |