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| OEM | OEM Services Provided |
| Feature | Good stability,Easy to Use |
| Classification | Dyes and Pigments |
| Advantage | Professional, Fast Delivery, Customizable | Samples | Apply for free，Contact us now. |
| Product Name: | BASIC ORANGE 21 |
| Synonyms: | 1h-indole,2,3-dihydro-1,3,3-trimethyl-2-[(2-methyl-3h-indol-3-ylidene)ethylide;2-(2-(2-methylindol-3-yl)vinyl)-1,3,3-trimethyl-3h-indoliuchloride;aizencathilonorangegl;aizencathilonorangeglh;c.i.basicorange21;cationicorangezh;genacrylorangeg;nabororangeg |
| CAS: | 3056-93-7 |
| MF: | C22H23ClN2 |
| MW: | 350.88 |
| EINECS: | 221-290-7 |
| Product Categories: | |
| Mol File: | 3056-93-7.mol |
| storage temp. | room temp |
| solubility | methanol: water (1:1): 10mg/mL, clear to hazy, red-orange |
| Colour Index | 48035 |
| form | powder |
| λmax | 490 nm |
| ε(extinction coefficient) | ≥19000 at 487-493nm ≥3000 at 268-274nm |
| EPA Substance Registry System | 1H-Indole, 2,3-dihydro-1,3,3-trimethyl-2-[2-(2-methyl-3H-indol-3-ylidene)ethylidene]-, hydrochloride (1:1) (3056-93-7) |
| Hazard Codes | Xn |
| Risk Statements | 20/21/22-36/37/38 |
| Safety Statements | 26-28-36/37/39-45 |
| WGK Germany | 3 |
| RTECS | NM2251000 |
| Provider | Language |
|---|---|
| SigmaAldrich | English |
| Chemical Properties | Slightly soluble in cold water, dissolved in hot water, are yellowish orange, dissolved in ethanol is also yellowish orange. The color and light change greatly when it meets copper and iron ions when dyeing. The color and light remain unchanged when dyed at high temperature of 120℃. | |||||||||||||||||||||||||||||
| Metachromatic dye | ||||||||||||||||||||||||||||||
| Preparation | 2-(1,3,3-Trimethylindolin-2-yl)acetaldehyde and 2-Methyl-2H-indazole??in 90 ℃ in the condensation, and then dumped into the water, and translated into chloride. | |||||||||||||||||||||||||||||
bright yellow orange. Soluble in water and ethanol are yellow, slightly soluble in cold water, soluble in hot water. Dye acrylic fiber as a bright yellow orange, tungsten filament in light slant red light. In 120 ℃ dyeing color when unchanged. In the dying encounter copper, iron ion colored light changes greatly. This product used for acrylic, two vinegar fiber, modified polyester dyeing and printing.
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| Raw materials | 2-Methylindole-->2-METHYL-2H-INDAZOLE-->1,3,3-Trimethyl-2-(formylmethylene)indoline |
Declaration: The products displayed on this website are intended exclusively for industrial applications or scientific research. They are not intended for medical, pharmaceutical, or food use. In accordance with applicable laws and regulations, purchasing organizations must hold valid qualifications and approvals.
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