4,4'-双(二甲氨基)二苯甲烷

Description

4-(4-(dimethylamino)benzyl)-N,N-dimethylbenzenamine · CAS 137198-51-7 · C17H22N2. UNII L6SPP9K4WQ. Boiling Point: 734 °F at 760 mmHg (NTP, 1992); Boiling Point: 390 °C decomposes; Boiling Point: BP: 155-157 °C at 0.1 mm Hg.

Identification

CAS Registry Number	137198-51-7
PubChem CID	7567
Molecular formula	C17H22N2
IUPAC name	4-[[4-(dimethylamino)phenyl]methyl]-N,N-dimethylaniline
UNII (FDA)	L6SPP9K4WQ

Computed Descriptors

Molecular Weight	254.37
XLogP3	3.9
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	2
Rotatable Bond Count	4
Exact Mass	254.178298710
Monoisotopic Mass	254.178298710
Topological Polar Surface Area	6.5
Heavy Atom Count	19
Formal Charge	0

Physical & Chemical Properties

Boiling Point	734 °F at 760 mmHg (NTP, 1992)
Boiling Point	390 °C decomposes
Boiling Point	BP: 155-157 °C at 0.1 mm Hg
Boiling Point	BP: 183 °C at 3 mm Hg
Melting Point	194 to 196 °F (NTP, 1992)
Melting Point	91.5 °C
Flash Point	412 °F (NTP, 1992)
Flash Point	211 °C
Vapor Pressure	0.0000175 [mmHg]

Physical description & handling notes

• Yellowish glistening leaflets or plates or tan crystals. Weak odor. Sublimes without decomposition. (NTP, 1992)
• Yellowish solid; [Hawley] Crystalline powder; [MSDSonline]
• Lustrous leaflets
• Yellowish leaflets or glistening plates
• Platelets or tablets from alcohol, ligand
• less than 1 mg/mL at 72 °F (NTP, 1992)

GHS Hazard Classification

Reported hazard statements	H350 (100%), H400 (100%), H410 (100%), H373, H303, H351

Documented Uses

• Used to manufacture dyes and as a reagent for lead; [Merck Index]
• Has been used in manufacture of dyes. As reagent for lead.
• ... Used as an intermediate in the manufacture of at least six dyes and one pigment (including Methylene Red and C.I. Basic Yellow 2, Basic Orange 14, Solvent Orange 15, and Solvent Yellow 34). Its hydrochloride salt is used as an analytical reagent for the determination of lead.
• Prepared by heating dimethylaniline with 40% formaldehyde and concentrated hydrochloric acid; ... from dimethylaniline + diacetylperoxide; from dimethylaniline + tert-butylperbenzoate.
• Production volumes for non-confidential chemicals reported under the Inventory Update Rule. [Table#4233]
• [US EPA; Non-confidential Production Volume Information Submitted by Companies for Chemicals Under the 1986-2002 Inventory Update Rule (IUR). Benzenamine, 4,4'-methylenebis

Synonyms

4,4'-Methylenebis(N,N-dimethylaniline); Michler's base; Methane base; Bis[4-(dimethylamino)phenyl]methane; Michler's hydride; Methylene base; Michler's methane; Reduced michler'S ketone; 4,4'-Bis(dimethylamino)diphenylmethane; Arnold's base; Tetramethyldiaminodiphenylmethane; Bis(4-(N,N-dimethylamino)phenyl)methane; 4,4'-Tetramethyldiaminodiphenylmethane; Baze michlerova; 4,4'-Methylenebis(N,N-dimethyl)benzenamine; 4,4'-(Dimethylamino)diphenylmethane

Frequently Asked Questions

What are the CAS number and molecular formula of 4-(4-(dimethylamino)benzyl)-N,N-dimethylbenzenamine?

CAS 137198-51-7; molecular formula C17H22N2; molecular weight — g/mol.

What other names is 4-(4-(dimethylamino)benzyl)-N,N-dimethylbenzenamine known by?

4,4'-Methylenebis(N,N-dimethylaniline), Michler's base, Methane base, Bis[4-(dimethylamino)phenyl]methane, Michler's hydride, Methylene base.

Is 4-(4-(dimethylamino)benzyl)-N,N-dimethylbenzenamine classified as hazardous?

Hazard statements reported: H350, H400, H410, H373, H303.

What are the key physical properties of 4-(4-(dimethylamino)benzyl)-N,N-dimethylbenzenamine?

Boiling Point: 734 °F at 760 mmHg (NTP, 1992); Boiling Point: 390 °C decomposes; Boiling Point: BP: 155-157 °C at 0.1 mm Hg; Boiling Point: BP: 183 °C at 3 mm Hg.

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.