Molekula
Acid Red 52
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Acid Red 52 is a synthetic xanthene (rhodamine) dye classified under acid dyes, primarily used for coloring wool, silk, and nylon fibers in the textile industry. Beyond textiles, it is used to make daylight fluorescent pink pigments, as a magenta dye in ink-jet printing, and as a fluorescent probe and histological stain in laboratories. It produces vibrant red shades with excellent lightfastness and acid resistance. This chemical has a CAS number of 3520-42-1, with the molecular formula C27H29N2NaO7S2 and a molecular weight of 580.65. It is stored at ambient conditions and carries no signal word for hazard classification. Molekula supplies Acid Red 52 from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Deep purple powder |
| Moisture | ≤8.0% |
| Insolubles | ≤0.2% |
| Solubility (90D) | ≥30 |
| Degree of finess | ≤8% |
| Dust-proof performance | ≥2 |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 90029903 |
| CAS Number | 3520-42-1 |
| IUPAC Name | sodium 4-[3-(diethylamino)-6-diethylazaniumylidenexanthen-9-yl]benzene-1,3-disulfonate |
| EC Number | 222-529-8 |
| Molecular Formula | C27H29N2NaO7S2 |
| Molecular Weight | 580.65 |
| Exact Mass | 580.1314 |
| SMILES | CCN(CC)C1=CC2=C(C=C1)C(=C3C=CC(=[N+](CC)CC)C=C3O2)C4=C(C=C(C=C4)S(=O)(=O)[O-])S(=O)(=O)[O-].[Na+] |
| InChIKey | SXQCTESRRZBPHJ-UHFFFAOYSA-M |
| InChI | InChI=1S/C27H30N2O7S2.Na/c1-5-28(6-2)18-9-12-21-24(15-18)36-25-16-19(29(7-3)8-4)10-13-22(25)27(21)23-14-11-20(37(30,31)32)17-26(23)38(33,34)35;/h9-17H,5-8H2,1-4H3,(H-,30,31,32,33,34,35);/q;+1/p-1 |
| PubChem CID | 9916275 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 3204.12.2000 |
| Tariff Code | 3204120060 |
Safety & GHS
Precautionary statements
- P280 Wear protective gloves/protective clothing/eye protection/face protection
Documents
Safety Data Sheets (SDS)
Available in English, German, Spanish, French, Italian, Portuguese, Arabic, Dutch.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- Acid Red XB
- Acid Rhodamine B
- Amido Rhodamine B
- C.I. Acid Red 52
- Fenazo Pink XXB
- Food Red 106
- Kiton Rhodamine B
- Lissamine Rhodamine
- Solar Rhodamine B
- Xylene Red B
Frequently asked questions
What is Acid Red 52 commonly used for?
Acid Red 52 is primarily used as a dye in textiles, leather, paper, and cosmetics due to its excellent colorfastness and bright red hue.
What is the chemical formula and molecular weight of Acid Red 52?
The chemical formula is C₂₇H₂₉N₂NaO₇S₂, and the molecular weight is 580.65 g/mol.
How should Acid Red 52 be stored?
Store at ambient temperature in a cool, dry place, away from direct sunlight and incompatible substances.
What grades or purity levels of Acid Red 52 does Molekula supply?
Molekula supplies technical-grade Acid Red 52 suitable for industrial dyeing applications.
Can Molekula supply Acid Red 52 in bulk quantities?
Yes, we offer bulk packaging options (e.g., 25 kg drums, 1 MT bags) for large-scale industrial use.
What documentation is provided with an order of Acid Red 52?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and batch-specific documentation.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.