Description
Chemical Name：Auramine O
Molecular Formula: C17H22ClN3
Molecular Weight: 303.83
Structural Formula:
Specification：
Items
Specifications
Melting point
>250°C (dec.) (lit.)
Bulk density
430 kg/m³
Solubility
10 g/l
Acidity coefficient (pKa)
9.8, 10.7 (at 25°C)
Color index
41000
pH indicator color change range
6.5
Water solubility
Soluble in water or ethanol
Items | Specifications |
Melting point | >250°C (dec.) (lit.) |
Bulk density | 430 kg/m³ |
Solubility | 10 g/l |
Acidity coefficient (pKa) | 9.8, 10.7 (at 25°C) |
Color index | 41000 |
pH indicator color change range | 6.5 |
Water solubility | Soluble in water or ethanol |
Function of Auramine O：
- Coloring function: As an alkaline dye, auramine has strong coloring ability.
- Fluorescence properties: Under specific wavelength light (such as ultraviolet light), auramine o emits fluorescence, making it suitable for fluorescent staining and detection.
- Selective binding: Due to its affinity for certain microorganisms (such as acid-fast bacilli) or specific components in biological tissues, Auramine O stain can achieve targeted identification through staining.
Application of Auramine O：
- Textile dyeing: Basic Yellow 2 is used for dyeing protein fibers such as wool and silk, producing a vibrant yellow color, and can be blended with other dyes to create various shades.
- Paper and leather coloring: Auramine is used as a paper coating or leather dye, it imparts a bright yellow appearance to products and has high colorfastness.
- Plastics and inks: Used for coloring certain plastics (such as cellulose acetate) and inks, particularly suitable for products requiring high gloss.
- Acid-fast bacillus staining: This is one of the most representative applications of Auramine O. It is widely used in the diagnosis of diseases such as tuberculosis.
- Tissue section staining: Assists in distinguishing specific structures in biological tissues (such as certain bacteria, fungi, or cellular components), enhancing contrast under a microscope.
- Fluorescent labeling and tracing: Utilizing its fluorescent properties, it is used as a tracer in laboratories to study processes such as the diffusion and adsorption of substances.
- Anti-counterfeiting and marking: Due to its fluorescent properties, auramin can be used for invisible marking or anti-counterfeiting printing on specific products (requires UV light detection).
Product Packaging and Transportation Show：
FQAs:
- Q1:What kind of packaging do the products usually come in?
A: This depends on the specific form of the product.
a1：If the product is in powder form, it is usually packed in 25kg woven bag/25kg cardboard drum, samples are usually bagged .
a2：If the product is liquid, it is usually packed in 180kg plastic drum/200kg iron drum, and the samples are usually in bottles.
a3：If customers have special requirements, please inform us in advance, we will choose the most suitable packaging according to the actual situation. - Q2:What is your shipping method?
A1：Usually, we will send small goods by FedEx, UPS and other international courier; bulk goods can be selected by sea, air or sea-land transport and other ways.
A2：If you have a designated courier or logistics channel, please be sure to inform us in advance so that we can arrange according to your requirements. - Q3: What methods can customers pay?
A: We offer a variety of payment methods, including TT transfer and credit card payment, which you can choose according to your needs. - Q4: What is your delivery time?
A: The exact delivery time will be determined according to the product category and quantity in your order. - Q5: If you have any questions or needs, please feel free to contact us, we will be happy to provide you with satisfactory service!
