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DISPERSE ORANGE 3

DISPERSE ORANGE 3 structure

CAS No.: 730-40-5

Chemical Name:: DISPERSE ORANGE 3

Synonyms: 4-(4-NITROPHENYLAZO)ANILINE;C.I. Disperse Orange 3;CI 11005;CellitonOrangeGR;Solvent Orange 9;abcolorange2rnex.;DISPERSE ORANGE 3;DISPERSEORANGENO3;Disperse Orange GR;Disperse Orange Zh

CBNumber:: CB2434481

Molecular Formula:: C12H10N4O2

Molecular Weight:: 242.23

MDL Number:: MFCD00007856

MOL File:: 730-40-5.mol

MSDS File:: SDS

TDS File:: TDS

Last updated:2026-05-28 00:31:02

Product description	Number	Pack Size	Price
Disperse Orange 3 Dye content 90 %	364797	5g	$102
Disperse Orange 3 Dye content 90 %	364797	25g	$446
Disperse Orange 3 ≥65%DyeContent	273681	10g	$353
Disperse Orange 3 ≥65%DyeContent	273681	25g	$556
Disperse Orange 3 ≥65%DyeContent	273681	50g	$797
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DISPERSE ORANGE 3 Properties

Melting point	~200 °C (dec.)(lit.)
Boiling point	385.06°C (rough estimate)
Density	1.2532 (rough estimate)
refractive index	1.6081 (estimate)
storage temp.	Refrigerator
solubility	Chloroform (Very Slightly, Heated, Sonicated), DMSO (Slightly), Methanol (Slightly)
Colour Index	11005
pka	2.78±0.10(Predicted)
form	Powder
color	Red to dark brown
Water Solubility	290.7ug/L(25 ºC)
λmax	443 nm
BRN	1842907
Henry's Law Constant	3.5×10⁴ mol/(m³Pa) at 25℃, Duchowicz et al. (2020)
Major Application	cleaning products cosmetics environmental food and beverages personal care
Cosmetics Ingredients Functions	HAIR DYEING
InChI	1S/C12H10N4O2/c13-9-1-3-10(4-2-9)14-15-11-5-7-12(8-6-11)16(17)18/h1-8H,13H2/b15-14+
InChIKey	UNBOSJFEZZJZLR-CCEZHUSRSA-N
SMILES	Nc1ccc(cc1)\N=N\c2ccc(cc2)[N+]([O-])=O
CAS DataBase Reference	730-40-5(CAS DataBase Reference)
EWG's Food Scores	1-4
FDA UNII	B7J3O076OT
EPA Substance Registry System	C.I. Disperse Orange 3 (730-40-5)
UNSPSC Code	85151701
NACRES	NA.24

SAFETY

Risk and Safety Statements

Symbol(GHS)	GHS07
Signal word	Warning
Hazard statements	H315-H317-H319-H335
Precautionary statements	P280-P302+P352-P305+P351+P338
target organs	Respiratory system
PPE	dust mask type N95 (US), Eyeshields, Faceshields, Gloves
Hazard Codes	Xi
Risk Statements	36/37/38-43
Safety Statements	26-36/37
WGK Germany	3
TSCA	TSCA listed
HS Code	32041100
Storage Class	11 - Combustible Solids
Hazard Classifications	Eye Irrit. 2 Skin Irrit. 2 Skin Sens. 1 STOT SE 3

DISPERSE ORANGE 3 price More Price(34)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	364797	Disperse Orange 3 Dye content 90 %	730-40-5	5g	$102	2026-04-30	Buy
Sigma-Aldrich	364797	Disperse Orange 3 Dye content 90 %	730-40-5	25g	$446	2026-04-30	Buy
Usbiological	273681	Disperse Orange 3 ≥65%DyeContent	730-40-5	10g	$353	2026-06-03	Buy
Usbiological	273681	Disperse Orange 3 ≥65%DyeContent	730-40-5	25g	$556	2026-06-03	Buy
Usbiological	273681	Disperse Orange 3 ≥65%DyeContent	730-40-5	50g	$797	2026-06-03	Buy

Product number	Packaging	Price	Buy
364797	5g	$102	Buy
364797	25g	$446	Buy
273681	10g	$353	Buy
273681	25g	$556	Buy
273681	50g	$797	Buy

DISPERSE ORANGE 3 Chemical Properties,Uses,Production

Description

Disperse orange 3 is an azo dye which can induce contact dermatitis in workers in the textile industry. Patch tests are frequently positive (about 30%) in hairdressers with a hand dermatitis. It is probably an indicator of contact sensitization to PPD, but disperse orange 3 can also be found in so me semipermanent hair dyes.

Chemical Properties

red to dark brown powder

Uses

Disperse orange 3 is used as a dye in acetate, nylon, silk, wool, and cotton; stocking dye.

Uses

Disperse Orange 3 may be used as a test material for investigating its degradation by the white rot fungusPleurotus ostreatus and the products obtained upon degradation are determined using UV-visible spectrophotometric and high-performance liquid chromatographic techniques.

Definition

ChEBI: Azobenzene substituted at the phenyl 4-positions by an amino and a nitro group.

Preparation

4-Nitrobenzenamine diazo, with aniline base armour sulfonic acid coupling, and sodium hydroxide solution to boil, then a sulfonic acid hydrolysis off base.

General Description

Disperse Orange 3 (DO3) is a monoazo dye, which contains 90% dye content plus dispersing agents and surfactants. It has two aromatic rings with an amino group on one of the rings and the other is substituted with a nitro group. It shows an absorption peak majoring at 415 nm.

Contact allergens

Disperse Orange 3 is an azo dye that can induce contact dermatitis in workers in the textile industry. It is positive in a great majority of PPD-positive people, because of hydrolysis in the skin into PPD. Disperse Orange 3 can also be found in some semipermanent hair dyes.

Properties and Applications

Orange, yellow light red powder, melting point of 210-220 ℃. Soluble in ethanol, acetone, toluene, soluble fiber element. The strong sulfuric acid for green light yellow to orange diluted; Nitric acid solution for orange red; In strong hydrochloric acid for brown in the light yellow. Used for polyester and acetic acid fiber dyeing, also can be used for nylon 66 and acrylic fiber dyeing and plastic shading.

Standard	Ironing Fastness		Light Fastness	Persperation Fastness		Washing Fastness
Standard	Fading	Stain	Light Fastness	Fading	Stain	Fading	Stain
ISO	4	2	5-6	4-5	5	4-5	3-4

DISPERSE ORANGE 3 synthesis

Synthesis of DISPERSE ORANGE 3 from 4-Nitroaniline and p-Phenylenediamine

DISPERSE ORANGE 3 Preparation Products And Raw materials

Raw materials

N-Methyl-4-nitroaniline 4-nitrobenzenediazonium 1-Triazene,1,3-bis(4-nitrophenyl)- 1,2-BIS(4-NITROPHENYL)HYDRAZINE 4-NITRODIAZOAMINOBENZENE

4-nitrobenzenediazonium chloride p-Phenylenediamine Aniline Aniline hydrochloride 4-Nitroaniline

Aniline 4-Nitroaniline

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Preparation Products

4,4'-AZODIANILINE Biphenyl

DISPERSE ORANGE 3 Suppliers

Global( 108)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
career henan chemical co	+86-0371-86658258	sales@coreychem.com	China	29766	58
Hefei TNJ Chemical Industry Co.,Ltd.	+86-0551-65418671 +86-189 4982 3763	sales@tnjchem.com	China	34526	58
changzhou huayang technology co., ltd	+8615250961469	2571773637@qq.com	China	9628	58
HANGZHOU LEAP CHEM CO., LTD.	+86-571-87711850 +8619957148339	market18@leapchem.com	China	24569	58
Xuzhou B&C Chemical Technology Co., Ltd	+86-400-0516-021 +86-15190678838	info@bcpharma.com	China	2728	58
Henan Fengda Chemical Co., Ltd	+86-371-86557731 +86-13613820652	info@fdachem.com	China	20111	58
Aladdin Scientific		tp@aladdinsci.com	United States	50108	58
XIAMEN AMITY INDUSTRY AND TRADE CO., LTD.	+8618950047208	ellena@amitychem.com	China	43392	58
DAYANG CHEM (HANGZHOU) CO.,LTD	+86-88938639 +86-17705817739	info@dycnchem.com	China	53799	58
Mainchem Co., Ltd.	+86-0592-6210733	sale@mainchem.com	China	32288	55

Supplier	Advantage
career henan chemical co	58
Hefei TNJ Chemical Industry Co.,Ltd.	58
changzhou huayang technology co., ltd	58
HANGZHOU LEAP CHEM CO., LTD.	58
Xuzhou B&C Chemical Technology Co., Ltd	58
Henan Fengda Chemical Co., Ltd	58
Aladdin Scientific	58
XIAMEN AMITY INDUSTRY AND TRADE CO., LTD.	58
DAYANG CHEM (HANGZHOU) CO.,LTD	58
Mainchem Co., Ltd.	55

View Lastest Price from DISPERSE ORANGE 3 manufacturers

Image	Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
	2019-07-06	DISPERSE ORANGE 3 730-40-5	$2.00	1KG	Dye content 70%		Career Henan Chemical Co

DISPERSE ORANGE 3
730-40-5
$2.00
Dye content 70%
Career Henan Chemical Co

DISPERSE ORANGE 3 Spectrum

DISPERSE ORANGE 3(730-40-5)¹HNMR DISPERSE ORANGE 3(730-40-5)FT-IR

730-40-5(DISPERSE ORANGE 3)Related Search:

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Disperse Violet 33 DISPERSE ORANGE 73 Disperse Orange 29

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CI 11005 Benzenamine, 4-[2-(4-nitrophenyl)diazenyl]- abcolorange2rnex. AcetoquinoneLightOrangeJRL Benzenamine, 4-[(4-nitrophenyl)azo]- Benzenamine,4-[(4-nitrophenyl)azo]- C.I.DISPERSEORANGE3(11005) CellitonOrangeGR DiacellitonFastOrange disperse orange 3 (C.I. 11005) DISPERSE ORANGE 3 Disperse Orange GR Disperse Orange 3, pure, 95% 4-(4-nitro-phenylazo)-phenylamine 4-[(4-nitrophenyl)azo]-benzenamin 4-[(4-nitrophenyl)azo]-Benzenamine 4’-Nitro-4-aminoazobenzene 4’-Nitro-4-amino-azobenzene DISPERSEORANGENO3 C.I. Disperse Orange 3 C.I.Disperse Orange 23 Disperse orange 3, 95%, pure 4-Amino-4'-nitroazobenzene C.I.Solvent Orange 9 Disperse Orange Zh Disperse Orange 3 Dye content 90 % Disperse Orange 3,4-(4-Nitrophenylazo)aniline Disperse Orange 3 ,94% [pure] Disperse Orange 3, pure, 95% 50GR Disperse Orange 3, 90%, pure Disperse Orange 3@100 μg/mL in MeOH C.I.Disperse Orange 3:C.I.11005 C.I.Solvent Orange 9:C.I.11005 Solvent Orange 9 4-((4-Nitrophenyl)diazenyl)aniline DISPERSE ORANGE 3DISPERSE ORANGE 3 C12972110 DispersEOrangE3 Disperse Orange 3 100mg/L in methanol Disperse Orange 3 (Standard) 4-(4-NITROPHENYLAZO)ANILINE 730-40-5 O2NC6H4NNC6H4NH2 C12H10N4O2 Analytical Chromatography Product Catalog Analytical Standards Analytical Reagents DIO - DIZ Alphabetic Microscopy Reagents Stains and Dyes Dyes and Pigments