Permanent Orange

Description

DINITRANILINE ORANGE · CAS 3468-63-1 · C16H10N4O5. UNII E27LT0986O. Melting Point: 302 °C; Density: 1.52 No temp; Color Additive Status: 81.10.

Identification

CAS Registry Number	3468-63-1
PubChem CID	18981
Molecular formula	C16H10N4O5
IUPAC name	1-[(2,4-dinitrophenyl)diazenyl]naphthalen-2-ol
UNII (FDA)	E27LT0986O

Computed Descriptors

Molecular Weight	338.27
XLogP3	4.3
Hydrogen Bond Donor Count	1
Hydrogen Bond Acceptor Count	7
Rotatable Bond Count	2
Exact Mass	338.06511943
Monoisotopic Mass	338.06511943
Topological Polar Surface Area	137
Heavy Atom Count	25
Formal Charge	0

Physical & Chemical Properties

Melting Point	302 °C
Density	1.52 No temp
Color Additive Status	81.10
Color Additive Status	81.30

Physical description & handling notes

• Dry Powder; Liquid; Dry Powder; CBI
• Reddish shade of orange
• Strong bright orange
• Orange powder ... paste
• When heated to decomposition it emits toxic fumes of NOx.
• D&C Orange No. 17

Regulatory Status

GHS notification summary	42.4% (369 / 871)

GHS Hazard Classification

GHS notification summary	42.4% (369 / 871)
Reported hazard statements	H319 (51.7%)

Documented Uses

• ... finds principle application in air-drying systems, including a variety of printing inks
• Used on a moderately large scale in the printing ink industry
• Cosmetics product ingredient: D&C Orange No. 17
• Production volumes for non-confidential chemicals reported under the Inventory Update Rule. [Table#7384]
• [US EPA; Non-confidential Production Volume Information Submitted by Companies for Chemicals Under the 1986-2002 Inventory Update Rule (IUR). 2-Naphthalenol, 1-
• Synthetic Dye and Pigment Manufacturing

Synonyms

3468-63-1; Permatone Orange; Hansa Orange RN; Light Orange R; Silopol Orange R; Carnelio Red 2G; Chromatex Orange R; Graphtol Red 2GL; Versal Orange RNL; Lake Red 2GL; Isol Fast Red 2G; Calcotone Orange 2R; Syton Fast Red 2G; Helio Fast Orange RN; Lutetia Fast Orange R; Brilliant tangerine 13030

Frequently Asked Questions

What are the CAS number and molecular formula of DINITRANILINE ORANGE?

CAS 3468-63-1; molecular formula C16H10N4O5; molecular weight — g/mol.

What other names is DINITRANILINE ORANGE known by?

3468-63-1, Permatone Orange, Hansa Orange RN, Light Orange R, Silopol Orange R, Carnelio Red 2G.

Is DINITRANILINE ORANGE classified as hazardous?

42.4% of GHS notifications report no hazard classification (369 of 871).

What are the key physical properties of DINITRANILINE ORANGE?

Melting Point: 302 °C; Density: 1.52 No temp; Color Additive Status: 81.10; Color Additive Status: 81.30.

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.