Molekula
Pigment Red 3
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Pigment Red 3 is a synthetic organic pigment used in coatings, plastics, and inks for its intense red color and good lightfastness. It is a nitro-substituted azo compound with the CAS number 2425-85-6, molecular formula C10H6(OH)N=NC6H3(NO2)CH3, and a molecular weight of 307.30 g/mol. It should be stored at ambient temperatures and handled with care due to its danger signal word. Molekula supplies Pigment Red 3 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
Specifications available on request — see Documents below or contact our sales team.
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 9 |
| Packing Group | III |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Yellowish red solid |
| Melting Point | 270 to 272 °C |
| Solubility (other solvents) | Slightly soluble in ethanol and xylene; poorly soluble in ethers and ketones |
Source: PubChem CID 17047 (HSDB)
Identification
| Property | Value |
|---|---|
| SKU | 89985155 |
| CAS Number | 2425-85-6 |
| IUPAC Name | 1-[(4-methyl-2-nitrophenyl)diazenyl]naphthalen-2-ol |
| EC Number | 219-372-2 |
| Molecular Formula | C10H6(OH)N=NC6H3(NO2)CH3 |
| Molecular Weight | 307.30 |
| Exact Mass | 307.0957 |
| SMILES | CC1=CC(=C(C=C1)N=NC2=C(C=CC3=CC=CC=C32)O)[N+](=O)[O-] |
| InChIKey | ZLFVRXUOSPRRKQ-UHFFFAOYSA-N |
| InChI | InChI=1S/C17H13N3O3/c1-11-6-8-14(15(10-11)20(22)23)18-19-17-13-5-3-2-4-12(13)7-9-16(17)21/h2-10,21H,1H3 |
| PubChem CID | 17047 |
| UN Number | UN3077 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 32129000 |
| Tariff Code | 3212900000 |
Safety & GHS
-
Corrosive
GHS05
-
Hazardous to the Environment
GHS09
Hazard statements
- H318 Causes serious eye damage
- H410 Very toxic to aquatic life with long lasting effects
Precautionary statements
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P501 Dispose of contents/container to an approved waste disposal plant
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, 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 Pigment Red 3 used for?
Pigment Red 3 is primarily used as a pigment in paints, coatings, plastics, and inks due to its strong color and stability.
What is the chemical formula and molecular weight of Pigment Red 3?
The formula is C10H6(OH)N=NC6H3(NO2)CH3 with a molecular weight of 307.30 g/mol.
How should Pigment Red 3 be stored?
It should be stored at ambient temperature, away from moisture and direct sunlight.
What grade of Pigment Red 3 is available?
Molekula supplies Pigment Red 3 in technical grade, suitable for industrial applications.
Can Molekula supply Pigment Red 3 in bulk?
Yes, Molekula can supply Pigment Red 3 in bulk quantities; please contact sales for pricing and availability.
What documentation comes with a Pigment Red 3 order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) with the shipment.
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.