CAS 2302-96-7: C.I. Acid Red 13
Description:C.I. Acid Red 13, also known as Acid Red 13 or by its chemical name, is a synthetic azo dye commonly used in various applications, including textiles, food, and cosmetics. It is characterized by its bright red color, which is attributed to the presence of azo (-N=N-) functional groups in its molecular structure. This compound is soluble in water, making it suitable for use in aqueous dyeing processes. Acid Red 13 exhibits good lightfastness and stability under acidic conditions, which enhances its utility in dyeing processes. However, like many azo dyes, it may raise concerns regarding environmental and health impacts, as some azo compounds can release aromatic amines that are potentially carcinogenic. Therefore, its use is regulated in certain applications. In terms of safety, it is advisable to handle this dye with care, using appropriate personal protective equipment to avoid skin and eye contact. Overall, C.I. Acid Red 13 is a versatile dye with significant industrial relevance, but its use must be managed responsibly.
Formula:C20H14N2O7S2·2Na
InChI:InChI=1S/C20H14N2O7S2.2Na/c23-18-9-5-12-11-13(30(24,25)26)6-7-14(12)20(18)22-21-17-8-10-19(31(27,28)29)16-4-2-1-3-15(16)17;;/h1-11,23H,(H,24,25,26)(H,27,28,29);;
InChI key:InChIKey=ANGXXPBDVWRUCI-UHFFFAOYSA-N
SMILES:[Na].O=S(=O)(O)C1=CC=C2C(C=CC(O)=C2N=NC3=CC=C(C=4C=CC=CC34)S(=O)(=O)O)=C1
- Synonyms:
- 1-Naphthalenesulfonic acid, 4-[(2-hydroxy-6-sulfo-1-naphthalenyl)azo]-, disodium salt
- 1-Naphthalenesulfonic acid, 4-[2-(2-hydroxy-6-sulfo-1-naphthalenyl)diazenyl]-, sodium salt (1:2)
- 1869 Red
- Acid Leather Red IBW
- Acid Red 13
- Acidal Red E
- Acidol Red E
- Acilan Red E
- Brilliant Ponceau 3RF extra
- Certicol Fast Red E
- See more synonyms
- Cherry Red A Geigy
- Cilefa Red E
- Crispin Fast Red E
- Dalf Fast Red
- Fast Red E
- Fast Red EA
- Fast Red Specially Pure
- HD Fast Red E
- HD Fast Red E Supra
- Hexacol Fast Red E
- Hexalan Fast Red E
- Hispacid Fast Red E
- Naphthalene Red EA
- Naphthionic Red A
- Neklacid Fast Red E
- Neklacid Red E
- Red E for Food
- Tertracid Red E
- disodium 4-[(2Z)-2-(2-oxo-6-sulfonatonaphthalen-1(2H)-ylidene)hydrazinyl]naphthalene-1-sulfonate
- C.I. 16045
- C.I. Food Red 4
- C.I. Acid Red 13, disodium salt
- C.I. Acid Red 13, disodium salt (8CI)
- C.I. Acid Red 13
- C.I. Acid Red 13 (7CI)
- C.I. Acid Red 13, disodium salt
- C.I. Acid Red 13
Brand | Product data | Purity | Price range | Estimated delivery |
---|---|---|---|---|
![]() | ACID RED 13 REF: IN-DA003NOECAS: 2302-96-7 | - - - | 50.00 €~181.00 € | Mon 14 Apr 25 |
![]() | Acid Red 13 REF: 3B-A1243CAS: 2302-96-7 | - - - | 63.00 € | Thu 17 Apr 25 |
![]() | Food Red 4 REF: 3D-CAA30296CAS: 2302-96-7 | Min. 95% | 248.00 €~1,420.00 € | Fri 25 Apr 25 |

Ref: IN-DA003NOE
1g | 50.00 € | ||
5g | 119.00 € |

Acid Red 13
Ref: 3B-A1243
10g | 63.00 € |

Food Red 4
Ref: 3D-CAA30296
5g | 248.00 € | ||
10g | 372.00 € | ||
25g | 621.00 € | ||
50g | 941.00 € | ||
100g | 1,420.00 € |