C.I. Pigment Yellow 1 structure

C.I. Pigment Yellow 1

2-[(4-methyl-2-nitrophenyl)diazenyl]-3-oxo-N-phenylbutanamide

Also Known As: Hansa yellow|Pigment yellow 1|Fast Yellow G|Light Yellow|Hansa Yellow G|Toluidine Yellow|C.I. Pigment Yellow 1|Pigment Yellow G|Lightfast Yellow|Kromon Yellow G|Siegle Yellow G|Versal Yellow G|Fast Yellow J|Hansa Yellow GT|Fastona Yellow G|Oralith Yellow G|Silopol Yellow G|Yellow Pigment G|Fast Yellow JT|Pigment Fast Yellow|Carnelio Yellow G|Irgalite Yellow G|Permansa Yellow G|Transa Flo Yellow|Hansa Yellow GAD|Silosol Yellow GN|Arylamide Yellow G|Chromatex Yellow J|Sanyo Fast Yellow G|Graphtol Yellow GL|Monolite Yellow GN|Acrylamide Yellow G|Siloton Yellow GCL|Vulcafix Yellow 4J|Isol Aryl Yellow G|Isol Fast Yellow G|Mono Fast Yellow G|Irgalite Yellow GNX|Irgalite Yellow GTN|Syton Fast Yellow G|Permanent Yellow G|Isol Aryl Yellow GX|Ext D&C Yellow 5|Hansa Yellow G Extra|Hansa Yellow G Toner|Pigment Lightfast Yellow|Calcotone Hansa Yellow|Helio Fast Yellow GN|Helio Fast Yellow GT|Tertropigment Yellow G

CAS: 2972-77-2
Molecular Formula C17H16N4O4
Molecular Weight 340.11716 g/mol
LogP 3.7
Topological Polar Surface Area 117.0 Ų
Hydrogen Bond Donors 1
Hydrogen Bond Acceptors 6
Rotatable Bonds 5
Exact Mass 340.11716
Monoisotopic Mass 340.11716
Heavy Atoms 25
Complexity 525.0

Chemical Identifiers

CAS Number 2972-77-2
SMILES CC1=CC(=C(C=C1)N=NC(C(=O)C)C(=O)NC2=CC=CC=C2)[N+](=O)[O-]
InChIKey MFYSUUPKMDJYPF-UHFFFAOYSA-N

Patent-Derived Application Labels

Derived from 3 IPC patent classification(s) across the SureChEMBL global patent database.

Agrochemicals (9 patents) Dyes & Pigments (1 patents) Pharmaceutical Intermediates (1 patents)

Product Overview

C.I. Pigment Yellow 1 (CAS 2972-77-2), with molecular formula C17H16N4O4 and molecular weight 340.11716 g/mol. IUPAC: 2-[(4-methyl-2-nitrophenyl)diazenyl]-3-oxo-N-phenylbutanamide.

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Safety Data Sheet (MSDS / SDS) View the Laboratory Chemical Safety Summary (LCSS) on PubChem — includes GHS classifications, hazard statements, first aid measures, and handling precautions.
View MSDS →

Frequently Asked Questions

What is the typical lead time for this product?
Lead time typically ranges from 3-7 business days for in-stock items. For larger quantities or custom orders, please contact us for specific lead times.
Can you provide samples for testing?
Yes, we offer sample quantities for quality testing. Please submit an inquiry with your requirements and we will arrange samples accordingly.
What documentation do you provide with the product?
We provide COA (Certificate of Analysis), MSDS (Material Safety Data Sheet), and technical data sheets with each shipment.
Do you ship internationally?
Yes, we ship to most countries worldwide. Shipping costs and delivery times vary by location. Please contact us for specific shipping information.
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