Naphthylamine

Description

Naphthylamine · CAS 25168-10-9 · C10H9N. UNII 9753I242R5. Boiling Point: 574 °F at 760 mmHg (NTP, 1992); Boiling Point: 300.7 °C; Boiling Point: 300.8 °C.

Identification

CAS Registry Number	25168-10-9
PubChem CID	8640
Molecular formula	C10H9N
IUPAC name	naphthalen-1-amine
UNII (FDA)	9753I242R5

Computed Descriptors

Molecular Weight	143.18
XLogP3	2.2
Hydrogen Bond Donor Count	1
Hydrogen Bond Acceptor Count	1
Rotatable Bond Count	0
Exact Mass	143.073499291
Monoisotopic Mass	143.073499291
Topological Polar Surface Area	26
Heavy Atom Count	11
Formal Charge	0

Physical & Chemical Properties

Boiling Point	574 °F at 760 mmHg (NTP, 1992)
Boiling Point	300.7 °C
Boiling Point	300.8 °C
Boiling Point	573 °F
Boiling Point	300.7 °C @760 [mm Hg]
Melting Point	122 °F (NTP, 1992)
Melting Point	49.2 °C
Melting Point	50.0 °C
Melting Point	122 °F
Flash Point	315 °F (NTP, 1992)

Physical description & handling notes

• Alpha-naphthylamine appears as a crystalline solid or a solid dissolved in a liquid. Insoluble in water and denser than water. Contact may slightly irritate skin, eyes and mucous membranes. May be slightly toxic by ingestion. Used to make other chemicals.
• Colorless crystals with an ammonia-like odor; Note: Darkens in air to a reddish-purple color; [NIOSH]
• WHITE CRYSTALS WITH CHARACTERISTIC ODOUR. TURNS RED ON EXPOSURE TO AIR, LIGHT AND MOISTURE.
• Colorless crystals with an ammonia-like odor.
• Colorless crystals with an ammonia-like odor. [Note: Darkens in air to a reddish-purple color.]
• Needles from ethanol (aq) or ether

Regulatory Status

Regulatory & Food Contact	FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS

GHS Hazard Classification

Reported hazard statements	H302, H411, H310 (13.6%), H311 (37.5%), H317 (37.5%), H320, H371

Documented Uses

• See 29CFR1910.1003 (Code of Federal Regulations}
• Toning prints made with cerium salts.
• Chemical intermediate for dyes, eg, azoic diazo component; chemical intermediate for azo dye coupling agents, for n-1-naphthylphthalmic acid herbicide, for n-phenyl-1-naphthylamine rubber antioxidant, for an imidazoline adrenergic agent; chemical intermediate for 1-naphthylthiourea rodenticide and for a fluoroacetamide miticide. /SRP60: Former/
• 1-Naphthylamine is used as an intermediate in the synthesis of dyes, antioxidants, herbicides, some drugs, and other chemicals. /SRP60: Former/
• Reduction of 1-nitronaphthalene by catalytic hydrogenation with a nickel catalyst ... .
• Prepared by reducing alpha-nitronaphthalene with iron and hydrochloric acid.

Synonyms

1-NAPHTHYLAMINE; 1-Aminonaphthalene; 134-32-7; naphthalen-1-amine; 1-Naphthalenamine; alpha-Naphthylamine; Naphthalidine; Naphthalen-1-ylamine; Fast Garnet Base B; Naphthalidam; 1-Naphthalamine; 1-Naphthylamin; 1-Naftilamina; alpha-Aminonaphthalene; Alfanaftilamina; Fast Garnet B Base

Frequently Asked Questions

What are the CAS number and molecular formula of Naphthylamine?

CAS 25168-10-9; molecular formula C10H9N; molecular weight — g/mol.

What other names is Naphthylamine known by?

1-NAPHTHYLAMINE, 1-Aminonaphthalene, 134-32-7, naphthalen-1-amine, 1-Naphthalenamine, alpha-Naphthylamine.

What is the regulatory status of Naphthylamine?

Documented regulatory listings: FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS.

Is Naphthylamine classified as hazardous?

Hazard statements reported: H302, H411, H310, H311, H317.

What are the key physical properties of Naphthylamine?

Boiling Point: 574 °F at 760 mmHg (NTP, 1992); Boiling Point: 300.7 °C; Boiling Point: 300.8 °C; Boiling Point: 573 °F.

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.