PRIMULINE
Synonym(s):Direct Yellow 59;Primuline Yellow
- CAS NO.：8064-60-6
- Empirical Formula: C21H14N3NaO3S3
- Molecular Weight: 475.54
- MDL number: MFCD00005798
- EINECS: 617-138-8
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-04-24 14:58:10
What is PRIMULINE?
What are the applications of Application
Primulin is a fluorescent dye containing the benzothiazole ring system
Preparation
p-Methylaniline (2 Moore) and sulfur (4.5 atomic ratio) in 200 ~ 280 ℃ heat, with hair smoke from the sulphonated sulfuric acid alkali primrose spirit.
Properties and Applications
green light yellow. Soluble in water for light yellow, with a light blue fluorescence. The strong sulfuric acid for light yellow, a green fluorescent, after diluted orange yellow precipitation. The dye solution to join strong hydrochloric acid has golden precipitation; Add thick sodium hydroxide solution for orange brown precipitation. Used for the cellulose fibre, silk dyeing, leather and biological shading. Silk dyeing in acetic acid bath, dyeing copper and iron ion in colored light basic unchanged.
| Standard | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
| Fading | Stain | Fading | Stain | ||||
| ISO | 3 | 4-5 | 1 | 2 | 3 | ||
| AATCC | 4 | 1-2 | 2 | 4 | |||
Properties of PRIMULINE
| Melting point: | >300°C |
| Colour Index | 49000 |
| form | Powder |
| color | Yellow-brown |
Safety information for PRIMULINE
Computed Descriptors for PRIMULINE
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