CAS 305-80-6: Diazotized sulfanilic acid
Description:Diazotized sulfanilic acid, with the CAS number 305-80-6, is an important chemical compound in the field of organic chemistry, particularly in the synthesis of azo dyes. It is derived from sulfanilic acid, which is an aromatic amine. The compound is characterized by the presence of a diazo group (-N=N-) attached to the sulfanilic acid structure, which enhances its reactivity and utility in various chemical reactions. Diazotized sulfanilic acid is typically a yellow to orange solid, soluble in water, and exhibits stability under acidic conditions. It is sensitive to light and heat, which can lead to decomposition. This compound is primarily used in the preparation of azo dyes, where it acts as a coupling agent, reacting with other aromatic compounds to form vibrant colored products. Additionally, it plays a role in analytical chemistry, particularly in colorimetric assays. Safety precautions are necessary when handling this compound, as it can be hazardous if ingested or inhaled, and appropriate protective measures should be taken.
Formula:C6H4N2O3S
InChI:InChI=1S/C6H4N2O3S/c7-8-5-1-3-6(4-2-5)12(9,10)11/h1-4H
InChI key:InChIKey=UEUIKXVPXLWUDU-UHFFFAOYSA-N
SMILES:N#[N+]C1=CC=C(C=C1)S(=O)(=O)[O-]
- Synonyms:
- 4-Benzenediazoniumsulfonate
- 4-Diazobenzenesulphonic Acid
- 4-Diazocyclohexa-2,5-Diene-1-Sulfonic Acid
- 4-Diazoniobenzenesulfonate
- 4-Sulfobenzenediazonium
- 4-Sulfobenzenediazonium hydroxide, inner salt
- 4-Sulfodiazobenzene
- 4-Sulfonatobenzenediazonium
- Benzenediazonium compounds, p-sulfo-, hydroxide, inner salt
- Benzenediazonium, 4-sulfo-, hydroxide, inner salt
- See more synonyms
- Benzenediazonium, 4-sulfo-, inner salt
- Benzenediazonium, p-sulfo-, hydroxide, inner salt
- Diazosulfanilic acid
- Diazotized sulfanilic acid
- Pauly's reagent
- Sulfanilic acid diazonium salt
- p-Diazobenzenesulfonic acid
- p-Diazonium phenylsulfonate
- p-Diazoniumsulfonic acid salt
- p-Sulfobenzenediazonium hydroxide inner salt
- p-Sulfophenyldiazonium
Brand | Product data | Purity | Price range | Estimated delivery |
---|---|---|---|---|
![]() | 4-Diazobenzenesulfonic acid - moistened with water (H2O~50%) REF: 3D-FD61408CAS: 305-80-6 | Min. 95% | 204.00 €~1,959.00 € | Mon 12 May 25 |
![]() | 4-Diazobenzenesulfonic Acid REF: TR-D494938CAS: 305-80-6 | - - - | 260.00 € | Mon 23 Jun 25 |

4-Diazobenzenesulfonic acid - moistened with water (H2O~50%)
Ref: 3D-FD61408
2mg | 267.00 € | ||
5mg | 497.00 € | ||
10mg | 705.00 € | ||
25mg | 1,178.00 € | ||
50mg | 1,959.00 € |

4-Diazobenzenesulfonic Acid
Ref: TR-D494938
1g | 260.00 € |