Molekula
8-Anilino-1-naphthalenesulfonic acid (Phenyl peri acid)
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
8-Anilino-1-naphthalenesulfonic acid, also called phenyl peri acid, is an organic compound primarily used as a fluorescent probe in analytical chemistry and biochemical research. It exhibits strong fluorescence under UV light that increases markedly in nonpolar environments, making it valuable for probing hydrophobic binding sites on proteins and membranes in laboratory applications. This compound has a CAS number of 82-76-8, a molecular formula of C16H13NO3S, and a molecular weight of 299.34 g/mol. It should be stored at ambient conditions and handled with caution, as it carries a signal word of "Warning." Molekula supplies 8-Anilino-1-naphthalenesulfonic acid 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
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
-
25 g — £71.60 per pack ex VAT · £85.92 inc. VAT
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 | Dark green to brown to black powder |
| Identification | Conforms to reference |
| Purity | ≥98.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Acid |
For research use only. Not for human use.
Identification
| Property | Value |
|---|---|
| SKU | 12709547 |
| CAS Number | 82-76-8 |
| IUPAC Name | 8-anilinonaphthalene-1-sulfonic acid |
| EC Number | 201-438-7 |
| Molecular Formula | C6H5NHC10H6SO3H |
| Molecular Weight | 299.34 |
| Exact Mass | 299.0616 |
| SMILES | C1=CC=C(C=C1)NC2=CC=CC3=C2C(=CC=C3)S(=O)(=O)O |
| InChIKey | FWEOQOXTVHGIFQ-UHFFFAOYSA-N |
| InChI | InChI=1S/C16H13NO3S/c18-21(19,20)15-11-5-7-12-6-4-10-14(16(12)15)17-13-8-2-1-3-9-13/h1-11,17H,(H,18,19,20) |
| PubChem CID | 1369 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29214510 |
| Tariff Code | 2921450090 |
Safety & GHS
-
Health Hazard
GHS07
Hazard statements
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P333+313 IF skin irritation or a rash occurs: Get medical advice/attention
- P337+313 If eye irritation persists get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Spanish.
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
No alternate names recorded for this product.
Frequently asked questions
What is 8-Anilino-1-naphthalenesulfonic acid (Phenyl peri acid) commonly used for?
It is primarily used as a dye intermediate in the synthesis of fluorescent dyes and certain organic pigments. It is also widely used as a fluorescent probe (ANS) for hydrophobic sites on proteins and membranes, for example in studies of protein folding and ligand binding.
What is the chemical formula and molecular weight of 8-Anilino-1-naphthalenesulfonic acid?
The formula is C6H5NHC10H6SO3H (or C16H13NO3S), and the molecular weight is 299.34 g/mol.
What is the recommended storage condition for this compound?
Store at ambient temperature in a cool, dry place, away from direct sunlight and incompatible substances.
What grades or purities of 8-Anilino-1-naphthalenesulfonic acid does Molekula supply?
We supply it in technical grade and analytical/ACS grade purity levels, depending on your application requirements.
Can Molekula supply this product in bulk quantities?
Yes, we offer bulk packaging options (e.g., 5kg, 25kg, and larger quantities) for industrial or large-scale applications.
What documentation comes with an order of this product?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and a product specification sheet detailing purity and quality control.
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.