Acid Blue 93, also known as Methyl Blue, is a water-soluble synthetic triphenylmethane acid dye widely used in biological staining, textile dyeing, ink manufacturing, and various industrial coloring applications. It is characterized by a high intensity of color and good solubility in water, and gives a bright blue color in solution. It is commonly used for staining of tissues and collagen in histological studies. It is also used for dyeing wool, leather, paper, and other proteinaceous fibers. It is stable in acidic conditions and reliable in coloring. It is a useful dye in laboratory and industrial applications.
CAS No.-Â 28983-56-4
Synonyms – Acid Blue 93; Ink Blue; Water Soluble Blue Dye, Methyl Blue, Methyl cotton blue.
| Physical Properties | |
| Chemical formula | C37H27N3Na2O9S3 |
| IUPAC Name | disodium;4-[4-[[4-(4-sulfonatoanilino)phenyl]-[4-(4-sulfophenyl)iminocyclohexa-2,5-dien-1-ylidene]methyl]anilino]benzenesulfonate |
| Molecular weight | 799.80 g/mol |
| Flash point | >300 °C |
| Density | 1.49 at 20℃ |
| Storage Temperature | Store at room temperature |
| Chemical Properties | |
| Color | Red to brown |
| Ph | 5.0 |
| Melting Point | >250℃ |
| Boiling Point | 1380℃ |
| λmax | 600 nm |
| Exact Mass | 800.07830656 Da |
Laboratory & Research Applications
Textile Industry
Ink & Printing Applications
| Pictograms : |  |
| Hazard Statements : | H302 – Harmful if swallowed. H315 – Causes skin irritation. H319 – Causes serious eye irritation. H335 – May cause respiratory irritation. ·  |
| Precautionary statements : | P101 – If medical advice is needed, have product container or label at hand. P102 – Keep out of reach of children. P103 – Read label before use. P261 – Avoid breathing dust/fume/gas/mist/spray. P280 – Wear protective gloves / eye protection / face protection. |
Acid Blue 93, also known as Methyl Blue, is a water-soluble synthetic triphenylmethane acid dye widely used in biological staining, textile dyeing, ink manufacturing, and various industrial coloring applications. It is characterized by a high intensity of color and good solubility in water, and gives a bright blue color in solution. It is commonly used for staining of tissues and collagen in histological studies. It is also used for dyeing wool, leather, paper, and other proteinaceous fibers. It is stable in acidic conditions and reliable in coloring. It is a useful dye in laboratory and industrial applications.
CAS No.-Â 28983-56-4
Synonyms – Acid Blue 93; Ink Blue; Water Soluble Blue Dye, Methyl Blue, Methyl cotton blue.
| Physical Properties | |
| Chemical formula | C37H27N3Na2O9S3 |
| IUPAC Name | disodium;4-[4-[[4-(4-sulfonatoanilino)phenyl]-[4-(4-sulfophenyl)iminocyclohexa-2,5-dien-1-ylidene]methyl]anilino]benzenesulfonate |
| Molecular weight | 799.80 g/mol |
| Flash point | >300 °C |
| Density | 1.49 at 20℃ |
| Storage Temperature | Store at room temperature |
| Chemical Properties | |
| Color | Red to brown |
| Ph | 5.0 |
| Melting Point | >250℃ |
| Boiling Point | 1380℃ |
| λmax | 600 nm |
| Exact Mass | 800.07830656 Da |
Laboratory & Research Applications
Textile Industry
Ink & Printing Applications
| Pictograms : | |
| Hazard Statements : | H302 – Harmful if swallowed. H315 – Causes skin irritation. H319 – Causes serious eye irritation. H335 – May cause respiratory irritation. ·  |
| Precautionary statements : | P101 – If medical advice is needed, have product container or label at hand. P102 – Keep out of reach of children. P103 – Read label before use. P261 – Avoid breathing dust/fume/gas/mist/spray. P280 – Wear protective gloves / eye protection / face protection. |
Acid Blue 93 should be handled with proper safety precautions. May be a skin and respiratory tract irritant by direct inhalation, ingestion or prolonged skin contact, therefore protective equipment is suggested during industrial or laboratory use.
Acid Blue 93 is widely used in laboratory and research applications, including biological staining, microscopy, and analytical studies. It is also used for dyeing textiles, leather, paper, and for coloring inks and other industrial products.Â
Acid Blue 93 is highly water-soluble. It is also known as Aniline Blue Water Soluble, it dissolves readily in both cold and hot water to produce a vivid blue solution. As a part of triphenylmethane dye family, it is excellent in water solubility, making it suitable for a wide range of applications, such as biological staining, textile dyeing, ink production, leather coloring, and acidic industrial cleaning products.
Acid Blue 93 is an anionic acid dye intended for use in acidic dyeing conditions particularly for protein-based fibres such as wool and silk.Â
