ChemicalBook >> CAS DataBase List >>5,8-Dihydroxy-1,4-naphthoquinone

5,8-Dihydroxy-1,4-naphthoquinone

5,8-Dihydroxy-1,4-naphthoquinone structure

CAS No.: 475-38-7

Chemical Name:: 5,8-Dihydroxy-1,4-naphthoquinone

Synonyms: NAPHTHAZARIN;5,8-Dihydroxynaphthoquinone;5,8-Dihydroxynaphthalene-1,4-dione;Naphthazarone;Naphthazarine;NAPHTHAZALINE;Mordant Black 37;Naphthazarin (6CI);5,8-Dihydroxy-1,4-n;5,8-dihydroxy-4-naphthoquinone

CBNumber:: CB8194974

Molecular Formula:: C10H6O4

Molecular Weight:: 190.15

MDL Number:: MFCD00001685

MOL File:: 475-38-7.mol

MSDS File:: SDS

Last updated:2024-10-31 20:01:59

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5,8-Dihydroxy-1,4-naphthoquinone Properties

Melting point	220-230 °C(lit.)
Boiling point	285.64°C (rough estimate)
Density	1.3366 (rough estimate)
refractive index	1.5280 (estimate)
storage temp.	Sealed in dry,Room Temperature
pka	6.98±0.20(Predicted)
form	powder to crystaline
color	Dark red to Brown
Water Solubility	Soluble in water (5520 mg/L 25.).
BRN	880561
CAS DataBase Reference	475-38-7(CAS DataBase Reference)
EWG's Food Scores	1
FDA UNII	S9IX5I5C0K
NIST Chemistry Reference	1,4-Naphthalenedione, 5,8-dihydroxy-(475-38-7)

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS07

Signal word

Warning

Hazard statements

H302+H312+H332-H315-H319-H335

Precautionary statements

P280a-P304+P340-P305+P351+P338-P405-P501a-P261-P264-P270-P271-P280-P301+P312+P330-P302+P352+P312+P362+P364-P304+P340+P312-P305+P351+P338+P337+P313-P501

Hazard Codes

Risk Statements

36/37/38

Safety Statements

22-24/25-37/39-26

WGK Germany

RTECS

QL7970000

HS Code

2914409000

NFPA 704

	1
2		0

5,8-Dihydroxy-1,4-naphthoquinone price More Price(18)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	388513	5,8-Dihydroxy-1,4-naphthoquinone technical grade	475-38-7	1g	$293	2024-03-01	Buy
TCI Chemical	D2070	5,8-Dihydroxy-1,4-naphthoquinone >75.0%(HPLC)	475-38-7	1g	$401	2024-03-01	Buy
TCI Chemical	D2070	5,8-Dihydroxy-1,4-naphthoquinone >75.0%(HPLC)	475-38-7	5g	$406	2021-12-16	Buy
Alfa Aesar	A18930	5,8-Dihydroxy-1,4-naphthoquinone, 97%	475-38-7	5g	$415	2021-12-16	Buy
Alfa Aesar	A18930	5,8-Dihydroxy-1,4-naphthoquinone, 97%	475-38-7	1g	$98.2	2021-12-16	Buy

Product number	Packaging	Price	Buy
388513	1g	$293	Buy
D2070	1g	$401	Buy
D2070	5g	$406	Buy
A18930	5g	$415	Buy
A18930	1g	$98.2	Buy

5,8-Dihydroxy-1,4-naphthoquinone Chemical Properties,Uses,Production

Chemical Properties

dark purple to brown-black powder

Preparation

1,8-Dinitronaphthalene and 1,5-Dinitronaphthalene mixture or both alone and one of sulfur 40% fuming sulfuric ACID reaction, the product (5, 8 – dihydroxy – naphthoquinone) into Sulfurous acid?hydrogen salt.

Definition

ChEBI: A naphthoquinone that is 1,4-naphthoquinone in which the hydrogens at positions 5 and 8 are replaced by hydroxy groups.

Purification Methods

It crystallises in red-brown needles with a green shine from EtOH. It also crystallises from hexane and is further purified by sublimation at 2-10mm. [Huppert et al. J Phys Chem 89 5811 1985.] It is sparingly soluble in H2O but soluble in alkalis. The diacetate forms golden yellow prisms from CHCl3, m 192-193o and the 5,8-dimethoxy derivative has m 157o (155o) (from pet ether) [Bruce & Thompson J Chem Soc 1089 1955, IR: Schmand & Boldt J Am Chem Soc 97 447 1975, NMR: Brockmann & Zeeck Chem Ber 101 4221 1968]. The monothiosemicarbazone has m 168o(dec) from EtOH [Gardner et al. J Am Chem Soc 74 2106 1952]. [Beilstein 8 H 412, 8 III 3600.]

Properties and Applications

ash red to black. Soluble in water for red light brown, soluble in ethanol for yellow brown, with green fluorescence. In concentrated sulfuric acid to dark yellow green, heating to rouge red, dilution after brown black precipitation. Dye aqueous solution to join sodium hydroxide to red, the air oxidation into blue.

Standard	Ironing Fastness	Light Fastness	Fulling		Persperation Fastness	Soaping	Water
			Alkali	Acid
ISO	5	6	5	4	5	5	5

5,8-Dihydroxy-1,4-naphthoquinone synthesis

Synthesis of 5,8-Dihydroxy-1,4-naphthoquinone from Maleic anhydride and Hydroquinone

5,8-Dihydroxy-1,4-naphthoquinone Preparation Products And Raw materials

Raw materials

1,4-Naphthalenedione, 2,3,6,7-tetrachloro-5,8-dihydroxy- 1,4-Naphthalenedione, 2,3,6,7-tetrabromo-5,8-dihydroxy- 1,4,5,8-Naphthalenetetrone 1,4-Naphthalenedione, 2,3-dihydro-5,8-dihydroxy- 1,4-Naphthalenedione,5,8-bis(acetyloxy)-

Naphthalene, 1,4,5-trimethoxy- 1,4,5,8-tetramethoxynaphthalene 5,8-Dimethoxy-1,4-naphthalenedione 1,5-Dinitronaphthalene 2,3-DICHLORO-5,8-DIHYDROXY-1,4-NAPHTHOQUINONE

Hydroquinone Maleic anhydride 1,8-Dinitronaphthalene 1,5-Dinitronaphthalene

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Preparation Products

5,8-Dihydroxy-1,4-naphthoquinone Suppliers

Global( 142)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Shaanxi Dideu Medichem Co. Ltd	18192627656	1012@dideu.com	China	3002	58
Zibo Hangyu Biotechnology Development Co., Ltd	+86-0533-2185556 +8617865335152	Mandy@hangyubiotech.com	China	10986	58
Shanghai Daken Advanced Materials Co.,Ltd	+86-371-66670886	info@dakenam.com	China	18648	58
Henan Tianfu Chemical Co.,Ltd.	+86-0371-55170693 +86-19937530512	info@tianfuchem.com	China	21639	55
ATK CHEMICAL COMPANY LIMITED	+undefined-21-51877795	ivan@atkchemical.com	China	32820	60
Speranza Chemical Co., Ltd.	+86-86-075521030354 +8618688942810	sophieliu@speranzachem.com	China	801	55
career henan chemical co	+86-0371-86658258 +8613203830695	factory@coreychem.com	China	29815	58
SIMAGCHEM CORP	+86-13806087780	sale@simagchem.com	China	17365	58
TargetMol Chemicals Inc.	+1-781-999-5354 +1-00000000000	marketing@targetmol.com	United States	32038	58
Alfa Chemistry		info@alfa-chemistry.com	United States	2344	58

Supplier	Advantage
Shaanxi Dideu Medichem Co. Ltd	58
Zibo Hangyu Biotechnology Development Co., Ltd	58
Shanghai Daken Advanced Materials Co.,Ltd	58
Henan Tianfu Chemical Co.,Ltd.	55
ATK CHEMICAL COMPANY LIMITED	60
Speranza Chemical Co., Ltd.	55
career henan chemical co	58
SIMAGCHEM CORP	58
TargetMol Chemicals Inc.	58
Alfa Chemistry	58

View Lastest Price from 5,8-Dihydroxy-1,4-naphthoquinone manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2024-10-31	Naphthazarin 475-38-7	US $63.00 / mg		99.87%	10g	TargetMol Chemicals Inc.
2024-08-27	5,8-Dihydroxy-1,4-naphthoquinone 475-38-7	US $150.00-430.00 / g	1g	99%	30	Zibo Hangyu Biotechnology Development Co., Ltd
2024-08-05	5,8-Dihydroxy-1,4-naphthoquinone 475-38-7	US $1.00-22.00 / KG	1KG	99%	100000KG	Shaanxi Dideu Medichem Co. Ltd

Naphthazarin
475-38-7
US $63.00 / mg
99.87%
TargetMol Chemicals Inc.

5,8-Dihydroxy-1,4-naphthoquinone
475-38-7
US $150.00-430.00 / g
99%
Zibo Hangyu Biotechnology Development Co., Ltd

5,8-Dihydroxy-1,4-naphthoquinone
475-38-7
US $1.00-22.00 / KG
99%
Shaanxi Dideu Medichem Co. Ltd

5,8-Dihydroxy-1,4-naphthoquinone Spectrum

5,8-Dihydroxy-1,4-naphthoquinone(475-38-7)MS 5,8-Dihydroxy-1,4-naphthoquinone(475-38-7)IR1 5,8-Dihydroxy-1,4-naphthoquinone(475-38-7)IR2 5,8-Dihydroxy-1,4-naphthoquinone(475-38-7)ESR

475-38-7(5,8-Dihydroxy-1,4-naphthoquinone)Related Search:

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1,3-Dihydroxyacetone Menadione sodium bisulfite Chrysin Solvent Red 43 2-[(R)-1-Acetoxy-4-methyl-3-pentenyl]-5,8-dihydroxy-1,4-naphthoquinone

DEOXYSHIKONIN (BETA,BETA-DIMETHYLACRYL)SHIKONIN 2-[1-(Isobutyryloxy)-4-methyl-3-pentenyl]-5,8-dihydroxy-1,4-naphthoquinone ISOVALERYLSHIKONIN Shikonin

(-)-2-(1-hydroxy-4-methyl-3-pentenyl)-5,8-dihydroxy-1,4-naphthoquinon Shikalkin 1,4-Dihydroxynaphthalene

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,8-Dihydroxy-[1,4]naphthoquinone ,8-Dihydroxy-1,4-naphthalenedione 1,4-Naphthoquinone, 5,8-dihydroxy- 2,3-Dihydro-1,4,5,8-naphthalenetetrone 5,8-dihydroxy-4-naphthalenedione 5,8-dihydroxy-4-naphthoquinone Naphthazarine Naphthazarone 5,8-DIHYDROXY-1,4-NAPHTHALENEDIONE 5,8-DIHYDROXY-1,4-NAPHTHOQUINONE DIHYDROXY-1,4-NAPHTHOQUINONE,5,8- 5,8-HYDROXY-1,4-NAPHTHOQUINONE NAPHTHAZALINE 5,8-DIHYDROXY-1,4-NAPHTHOQUINONE, TECH. 5,8-Dihydroxy-1,4-naphthoquinone,tech.90% 5,8-Dihydroxy-1,4-n 5,8-Dihydroxy-1,4-naphthoquinone,98% 5,8-Dihydroxy-1,4-naphthalenedione Naphthazarin 5,8-dihydroxy-2,3-dihydronaphthalene-1,4-dione 5,8-Dihydroxy-1,4-naphthoquinone> 1,4-Naphthalenedione, 5,8-dihydroxy- C.I.Mordant Black 37:C.I.57010 Mordant Black 37 5,8-Dihydroxynaphthoquinone NAPHTHAZARIN 5,8-Dihydroxynaphthalene-1,4-dione Naphthazarin (6CI) Naturally,Apoptosis,Naphthazarin,stress,microtubules,mitochondrial,AIF,Inhibitor,p21,lysosomal,inhibit,oxidative,p53-dependent,anti-tumor 475-38-7 HO2C10H4O2 Carbonyl Compounds C10 Building Blocks Organic Building Blocks Ketones API intermediates