Auramine O

Description

Auramine O · CAS 2465-27-2 · C17H21N3. UNII 73O74R443B. Melting Point: 136 °C; Melting Point: 267 °C; Vapor Pressure: 0.00000129 [mmHg].

Identification

CAS Registry Number	2465-27-2
PubChem CID	10298
Molecular formula	C17H21N3
IUPAC name	4-[4-(dimethylamino)benzenecarboximidoyl]-N,N-dimethylaniline
UNII (FDA)	73O74R443B

Computed Descriptors

Molecular Weight	267.37
XLogP3	4
Hydrogen Bond Donor Count	1
Hydrogen Bond Acceptor Count	3
Rotatable Bond Count	4
Exact Mass	267.173547683
Monoisotopic Mass	267.173547683
Topological Polar Surface Area	30.3
Heavy Atom Count	20
Formal Charge	0

Physical & Chemical Properties

Melting Point	136 °C
Melting Point	267 °C
Vapor Pressure	0.00000129 [mmHg]

Physical description & handling notes

• C.i. solvent yellow 34 appears as yellow crystalline powder or yellow needles.
• Colorless or yellow solid; [HSDB]
• YELLOW OR COLORLESS PLATES FROM ALCOHOL
• SOL IN ETHYL ETHER, VERY SOL IN ETHANOL.
• Sol in alcohol
• DECOMPOSES @ TEMP ABOVE 70 °C.

GHS Hazard Classification

Reported hazard statements	H302, H319, H351, H411

Documented Uses

• Used to dye food, smoke, paper, cardboard, textiles, leather, oils, waxes, alcoholic solvents, lacquers, pen inks, carbon papers, and typewriter ribbons; Also used as an antiseptic, fungicide, and to prepare solvent yellow 34; [HSDB]
• Pulp and Paper Processing [Category: Industry]
• Painting (Pigments, Binders, and Biocides) [Category: Paint]
• Using Disinfectants or Biocides [Category: Clean]
• Leather Tanning and Processing [Category: Industry]
• Textiles (Printing, Dyeing, or Finishing) [Category: Industry]

Synonyms

AURAMINE; 492-80-8; Yellow pyoctanine; Glauramine; Auramine base; Auramine O base; Solvent Yellow 34; Auramine N base; Auramine OAF; Apyonine auramine base; Auramine SS; Auramine (free base); C.I. Solvent Yellow 34; Waxoline Yellow O; 4,4'-Dimethylaminobenzophenonimide; CI Solvent Yellow 34

Frequently Asked Questions

What are the CAS number and molecular formula of Auramine O?

CAS 2465-27-2; molecular formula C17H21N3; molecular weight — g/mol.

What other names is Auramine O known by?

AURAMINE, 492-80-8, Yellow pyoctanine, Glauramine, Auramine base, Auramine O base.

Is Auramine O classified as hazardous?

Hazard statements reported: H302, H319, H351, H411.

What are the key physical properties of Auramine O?

Melting Point: 136 °C; Melting Point: 267 °C; Vapor Pressure: 0.00000129 [mmHg].

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.