Molekula
Pigment Yellow 4
Pigment Yellow 4 is a synthetic organic pigment used in coatings, plastics, and inks for its bright yellow color and good lightfastness. It has a CAS number of 1657-16-5, a molecular formula of C16H14N4O4, and a molecular weight of 326.31 g/mol. It is stable at ambient storage conditions and carries no signal word. Molekula supplies Pigment Yellow 4 from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Overview
Pigment Yellow 4 is a synthetic organic pigment used in coatings, plastics, and inks for its bright yellow color and good lightfastness. It has a CAS number of 1657-16-5, a molecular formula of C16H14N4O4, and a molecular weight of 326.31 g/mol. It is stable at ambient storage conditions and carries no signal word. Molekula supplies Pigment Yellow 4 from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Specifications
Specifications available on request — see Documents below or contact our sales team.
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Shelf Life | 24 months |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| CAS Number | 1657-16-5 |
| Molecular Formula | C16H14N4O4 |
| Molecular Weight | 326.31 |
| SMILES | CC(=O)C(C(=O)NC1=CC=CC=C1)N=NC2=CC=C(C=C2)[N+](=O)[O-] |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 32041790 |
| Tariff Code | 3204170090 |
Safety & GHS
Precautionary statements
- P264 Wash thoroughly after handling
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P308+313 IF exposed or concerned: Get medical advice/attention
For research and industrial use only
Documents
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.
Pricing & pack sizes
Synonyms
No alternate names recorded for this product.
Frequently asked questions
What is Pigment Yellow 4 used for?
Pigment Yellow 4 is used as a yellow pigment in paints, coatings, plastics, and inks due to its high color strength and stability.
What is the chemical formula and molecular weight of Pigment Yellow 4?
The chemical formula is C16H14N4O4, and the molecular weight is 326.31 g/mol.
How should Pigment Yellow 4 be stored?
It should be stored at ambient temperature, protected from moisture and direct sunlight.
What grade of Pigment Yellow 4 is available?
Molekula supplies Pigment Yellow 4 in technical grade, suitable for industrial applications.
Can Molekula supply Pigment Yellow 4 in bulk?
Yes, Molekula can supply Pigment Yellow 4 in bulk quantities; please contact sales for volume pricing and availability.
What documentation comes with a Pigment Yellow 4 order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS), compliant with regulatory standards.
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.