SUNCHEM

4-Nitro-o-phenylenediamine

4-Nitro-o-phenylenediamine (Brown 4N) is an aromatic diamine compound used as an oxidative hair dye intermediate that produces brown to reddish-brown shades. It is valued in professional hair coloring for delivering warm natural brown tones with good depth and color fastness. SUNCHEM supports international buyers with…

99-56-9
  • Lot COA with every shipment
  • Samples for your trials
  • Technical support for your trial
CAS No.99-56-9
FormulaC6H7N3O2
Synonymso-Phenylenediamine,4-nitro- (6CI,7CI,8CI);(2-Amino-4-nitrophenyl)amine;1,2-Diamino-4-nitrobenzene;2-Amino-4-nitroaniline;2-Amino-5-nitroaniline;3,4-Diaminonitrobenzene;4-Nitro-1,2-benzenediamine;4-Nitro-1,2-phenylenediamine;4-Nitro-2-aminoaniline;C.I. 76020;NSC 5378;p-Nitro-o-phenylenediamine;1,2-Benzenediamine,4-nitro-;

Product overview & key benefits

4-Nitro-o-phenylenediamine (Brown 4N) is an aromatic diamine compound used as an oxidative hair dye intermediate that produces brown to reddish-brown shades. It is valued in professional hair coloring for delivering warm natural brown tones with good depth and color fastness. SUNCHEM supports international buyers with 4-Nitro-o-Phenylenediamine (Brown 4N) sourcing from qualified Chinese producers, with quality documentation, export coordination, and logistics support.

Technical specifications

PropertyReference value
Density1.446 g/cm3
Melting Point199-201 °C(lit.)
Boiling Point421.1 °C at 760 mmHg
Flash Point208.5 °C
Solubilitywater: 1.2 g/L (20 °C)
AppearanceOrange-red powder

Existing product reference data. Confirm the specification of the offered grade before ordering.

Applications

Permanent hair dye intermediate (brown shades)
Oxidative hair color developer
Professional hair coloring formulation
Cosmetic colorant precursor
Fur dyeing intermediate
Organic synthesis intermediate
Specialty dye manufacturing

From first email to approved supply

01

Send your RFQ

Share your application, quantity, destination and current grade.

02

Review the documents

Review the producer TDS, a recent COA and SDS with the quotation.

03

Trial a sample

Run your own tests against your current grade.

04

Lock the spec

Put approved lot limits into the contract and check every COA against them.

Tell us your requirement. We match the grade.

Share your application, required quantity and destination.

Email david@sunchemgroup.com

Discuss your 4-Nitro-o-phenylenediamine requirements

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