ChemicalBook >> CAS DataBase List >>5,8-Dihydroxy-1,4-naphthoquinone
5,8-Dihydroxy-1,4-naphthoquinone
- 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:2023-05-18 11:31:14
| 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 | Xi | |||||||||
| Risk Statements | 36/37/38 | |||||||||
| Safety Statements | 22-24/25-37/39-26 | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | QL7970000 | |||||||||
| HS Code | 2914409000 | |||||||||
| NFPA 704 |
|
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 |
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 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)-
1of3
Preparation Products
Global( 134)Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21695 | 55 |
| ATK CHEMICAL COMPANY LIMITED | +undefined-21-51877795 | ivan@atkchemical.com | China | 32480 | 60 |
| Speranza Chemical Co., Ltd. | +86-86-075521030354 +8618688942810 | sophieliu@speranzachem.com | China | 723 | 55 |
| career henan chemical co | +86-0371-86658258 15093356674; | factory@coreychem.com | China | 29826 | 58 |
| SIMAGCHEM CORP | +86-13806087780 | sale@simagchem.com | China | 17367 | 58 |
| Alfa Chemistry | info@alfa-chemistry.com | United States | 2344 | 58 | |
| Sense Chemicals (Shanghai) Co., Ltd. | +86-21-52751036; +8613818977689 | david.dai@sensechemicals.com | China | 224 | 58 |
| Dayang Chem (Hangzhou) Co.,Ltd. | 571-88938639 +8617705817739 | info@dycnchem.com | CHINA | 52867 | 58 |
| Henan Alfa Chemical Co., Ltd | +8618339805032 | alfa4@alfachem.cn | China | 12755 | 58 |
| Nanjing Doge Biomedical Technology Co., Ltd | +86-25-58227606 +86-15305155328 | sales@dogechemical.com | China | 4128 | 58 |
View Lastest Price from 5,8-Dihydroxy-1,4-naphthoquinone manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2022-10-10 | 5,8-Dihydroxy-1,4-naphthoquinone
475-38-7
|
US $0.00-0.00 / KG | 1KG | 98% | 1ton | Henan Aochuang Chemical Co.,Ltd. | |
 |
2020-01-08 | 5,8-Dihydroxy-1,4-naphthoquinone
475-38-7
|
US $2.00 / KG | 1g | 98%MIN | ASK | Career Henan Chemical Co |
-
- 5,8-Dihydroxy-1,4-naphthoquinone
475-38-7
- US $0.00-0.00 / KG
- 98%
- Henan Aochuang Chemical Co.,Ltd.
-
- 5,8-Dihydroxy-1,4-naphthoquinone
475-38-7
- US $2.00 / KG
- 98%MIN
- Career Henan Chemical Co
475-38-7(5,8-Dihydroxy-1,4-naphthoquinone)Related Search:
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,8-Dihydroxy-[1,4]naphthoquinone
,8-Dihydroxy-1,4-naphthalenedione
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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