C.I.18890
ACID YELLOW 34 (C.I. 18890)
CAS: 6359-90-6
Molecular Formula: C16H12ClN4NaO4S
C.I.18890 - Names and Identifiers
C.I.18890 - Physico-chemical Properties
| Molecular Formula | C16H12ClN4NaO4S |
| Molar Mass | 414.79865 |
C.I.18890 - Introduction
ACID YELLOW 34 (C.I. 18890), also known as Ponceau S, is an organic compound. The following is a description of its nature, use, preparation and safety information:
Nature:
-Appearance: ACID YELLOW 34 (C.I. 18890) is a red crystalline powder.
-Solubility: It can be dissolved in water to produce a red solution.
- pH range: The pH range of the solution is usually 1.2 to 2.6.
Use:
-Colorant: ACID YELLOW 34 (C.I. 18890) is a commonly used food colorant, also used in histological staining, biological experiments and chemical experiments.
-Indicator: It can be used as a redox indicator, and the color will change during the reaction.
Preparation Method:
- ACID YELLOW 34 (C. I. 18890) is generally prepared by reacting aniline with catechol, followed by chlorination and sulfonation.
Safety Information:
- ACID YELLOW 34 (C. I. 18890) may be irritating in its pure form, so avoid exposure to the skin, eyes and respiratory tract during operation.
-Attention to preservation: It should be stored in a dry, low temperature and well-ventilated environment to avoid contact with oxidants.
Nature:
-Appearance: ACID YELLOW 34 (C.I. 18890) is a red crystalline powder.
-Solubility: It can be dissolved in water to produce a red solution.
- pH range: The pH range of the solution is usually 1.2 to 2.6.
Use:
-Colorant: ACID YELLOW 34 (C.I. 18890) is a commonly used food colorant, also used in histological staining, biological experiments and chemical experiments.
-Indicator: It can be used as a redox indicator, and the color will change during the reaction.
Preparation Method:
- ACID YELLOW 34 (C. I. 18890) is generally prepared by reacting aniline with catechol, followed by chlorination and sulfonation.
Safety Information:
- ACID YELLOW 34 (C. I. 18890) may be irritating in its pure form, so avoid exposure to the skin, eyes and respiratory tract during operation.
-Attention to preservation: It should be stored in a dry, low temperature and well-ventilated environment to avoid contact with oxidants.
Last Update：2024-04-09 20:49:11
