CAS 4857-81-2: Acid Green 9
Description:Acid Green 9, with the CAS number 4857-81-2, is a synthetic dye belonging to the class of acid dyes, which are typically used for dyeing textiles, particularly protein fibers like wool and silk, as well as for various applications in the paper and leather industries. This dye is characterized by its vibrant green color and is soluble in water, making it suitable for use in aqueous dyeing processes. Acid Green 9 exhibits good lightfastness and washfastness properties, although these can vary depending on the specific application and substrate. The chemical structure of Acid Green 9 includes sulfonic acid groups, which enhance its solubility and affinity for fibers. As with many synthetic dyes, it is important to handle Acid Green 9 with care, as it may pose environmental and health risks if not managed properly. Safety data sheets should be consulted for information on handling, storage, and disposal to ensure compliance with safety regulations.
Formula:C37H35ClN2O6S2·Na
InChI:InChI=1S/C37H35ClN2O6S2.Na/c1-3-39(25-27-9-7-11-33(23-27)47(41,42)43)31-19-15-29(16-20-31)37(35-13-5-6-14-36(35)38)30-17-21-32(22-18-30)40(4-2)26-28-10-8-12-34(24-28)48(44,45)46;/h5-24H,3-4,25-26H2,1-2H3,(H-,41,42,43,44,45,46);
InChI key:InChIKey=KPUKKCBDJFTUFI-UHFFFAOYSA-N
SMILES:[Na].O=S(=O)([O-])C=1C=CC=C(C1)C[N+](=C2C=CC(C=C2)=C(C3=CC=C(C=C3)N(CC4=CC=CC(=C4)S(=O)(=O)O)CC)C=5C=CC=CC5Cl)CC
- Synonyms:
- 4-[[4-(N-Ethyl-m-sulfobenzylamino)phenyl](o-chlorophenyl)methylene]-1-(N-ethyl-N-m-sulfonium-benzyl-Δ<sup>2,5</sup>-cyclohexadienimine)monosodium salt
- Acid Brilliant Green 6B
- Acid Brilliant Green B
- Acid Green 5B
- Acid Green 6B
- Acid Green GB
- Acid Leather Green KGB
- Acid green 9
- Acilan Brilliant Green 6B
- Airedale Green B
- See more synonyms
- Aizen Acid Brilliant Green B
- Aizen Brilliant Acid Green 6BH
- Aizen Brilliant Acid Green 6BH Extra
- Aizen Brilliant Milling Green B
- Alizarin Green
- Amacid Milling Green B
- Benzenemethanaminium, N-[4-[(2-chlorophenyl)[4-[ethyl[(3-sulfophenyl)methyl]amino]phenyl]methylene]-2,5-cyclohexadien-1-ylidene]-N-ethyl-3-sulfo-, hydroxide, inner salt, sodium salt
- Benzenemethanaminium, N-[4-[(2-chlorophenyl)[4-[ethyl[(3-sulfophenyl)methyl]amino]phenyl]methylene]-2,5-cyclohexadien-1-ylidene]-N-ethyl-3-sulfo-, inner salt, sodium salt
- Benzenemethanaminium, N-[4-[(2-chlorophenyl)[4-[ethyl[(3-sulfophenyl)methyl]amino]phenyl]methylene]-2,5-cyclohexadien-1-ylidene]-N-ethyl-3-sulfo-, inner salt, sodium salt (1:1)
- Bezanyl Green F 2B
- Brilliant Acid Green 6B
- Brilliant Acid Green B
- Brilliant Milling Green
- Brilliant Milling Green B
- Brilliant Milling Green NS
- Bucacid Fast Green B
- Calcocid Milling Green 6B
- Cetil Brilliant Green 6B
- Colocid Green 6B
- Dinacid Milling Green B
- Disulphine Green B
- Erio Viridine B
- Eriogreen
- Fast Acid Green B
- Fenazo Green XG
- Folan Green B
- Hidacid Fast Green B
- Indigo Green B
- Kiton Green B
- Leather Green 6B
- Lerui Acid Brilliant Green 6B
- Merantine Green B
- Milling Brilliant Green B
- Milling Green
- Mitsui Acid Brilliant Milling Green BM 100
- Mitsui Brilliant Milling Green BX
- N-{(1E,4E)-4-[(2-chlorophenyl){4-[ethyl(3-sulfobenzyl)amino]phenyl}methylidene]cyclohexa-2,5-dien-1-ylidene}-N-(3-sulfobenzyl)ethanaminium
- NSC 4319
- NSC 51540
- NSC 8683
- Neptune Green SGXA
- Night Green A
- Sandolan Brilliant Green E-6B
- Sumitomo Brilliant Milling Green B
- Triacid Green 6B
- Vicoacid Green 9
- Xylene Fast Green 6B
- Xylene Milling Green 6B
- sodium 3-[[4-[(2-chlorophenyl)-[4-[ethyl-[(3-sulfonatophenyl)methyl]iminio]cyclohexa-2,5-dien-1-ylidene]methyl]-N-ethyl-anilino]methyl]benzenesulfonate
- C.I. Acid Green 9, monosodium salt
- C.I. Acid Green 9
Brand | Product data | Purity | Price range | Estimated delivery |
---|---|---|---|---|
![]() | Acid Green 9 REF: 3B-B0791CAS: 4857-81-2 | - - - | 48.00 € | Mon 21 Apr 25 |
![]() | ALIZARIN GREEN REF: IN-DA003NP7CAS: 4857-81-2 | - - - | 47.00 €~205.00 € | Mon 28 Apr 25 |
![]() | Alizarin Green REF: 54-OR1012231CAS: 4857-81-2 | - - - | 32.00 €~83.00 € | Tue 29 Apr 25 |
![]() | Acid Green 9 (Technical Grade) REF: TR-A189908CAS: 4857-81-2 | - - - | 99.00 €~173.00 € | Tue 06 May 25 |
![]() | Acid green 9, Technical grade Dye content REF: 3D-FA41042CAS: 4857-81-2 | Min. 95% | - - - | Discontinued product |

Acid Green 9
Ref: 3B-B0791
25g | 48.00 € |

ALIZARIN GREEN
- Dyes, Stains and Tinctures
- Dyes
- Stains and Dyes
- Acid Dyes
- See more categories
- Others
Ref: IN-DA003NP7
1g | 47.00 € | ||
5g | 57.00 € | ||
25g | 123.00 € | ||
100g | 205.00 € |

Ref: 54-OR1012231
1g | 32.00 € | ||
5g | 36.00 € | ||
25g | 83.00 € |

Acid Green 9 (Technical Grade)
Controlled ProductRef: TR-A189908
250mg | 99.00 € | ||
500mg | 138.00 € | ||
2500mg | 173.00 € |

Acid green 9, Technical grade Dye content
Ref: 3D-FA41042
50g | Discontinued | Request information | |
100g | Discontinued | Request information |