Lawsone
4 Inquiries
83-72-7
Industrial Grade
98%
guangzhou
Cuicheng Bio
5g
2026-07-10
Ginsenoside Rb1,Ginsenoside Rg1,Ginsenoside Re,Ginsenoside CK,Ginsenoside Rg2,Ginsenoside Rg5
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Product Description
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Seller Information
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Inquiry History
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DescriptionBasic Info
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Product Name:
2-Hydroxy-1,4-naphthoquinone
Other Name:1,4-Naphthalenedione,2-hydroxy-;1,4-Naphthoquinone,2-hydroxy-;2-Hydroxy-1,4-naphthalenedione;C.I. 75480;C.I. Natural Orange 6;Flower of Paradise;Henna;Lawsone;Mehendi;Mendi;2-Hydroxy-1,4-naphthoquinone;2-Hydroxynaphthoquinone;Henna (dye);Q 0;Pakarli;NSC 8625;1,4-Dihydro-1,4-dioxo-2-hydroxynaphthalene;NSC 27285;NSC 52500;Quino Power LSN;Quinoexter 2014;Quinoexter QE 2014;2-Hydroxy-1,4-dihydronaphthalene-1,4-dione;1985594-94-2
CAS No.:83-72-7
Molecular Formula:C10H6O3
InChIKeys:InChIKey=CSFWPUWCSPOLJW-UHFFFAOYSA-N
Molecular Weight:174.15
Exact Mass:174.15
BRN:1565260
EC Number:201-496-3
UNII:TLH4A6LV1W
NSC Number:27285|8625
DSSTox ID:DTXSID2025428
HScode:2914690090
Categories:
Characteristics-
PSA:
54.4
XLogP3:1.55
Appearance:Yellow Crystalline Powder
Density:1.5±0.1 g/cm3
Melting Point:195.5 °C (decomp)
Boiling Point:339.9±42.0 °C at 760 mmHg
Flash Point:173.6±24.4 °C
Refractive Index:1.681
Water Solubility:H2O: 2g/L (20 ºC)
Storage Conditions:Keep tightly closed. Store in a cool dry place.
Air and Water Reactions:Insoluble in water.
Reactive Group:Ketones
Reactivity Profile:Phenols, such as 2-HYDROXY-1,4-NAPHTHOQUINONE, do not behave as organic alcohols, as one might guess from the presence of a hydroxyl (-OH) group in their structure. Instead, they react as weak organic acids. Phenols and cresols are much weaker as acids than common carboxylic acids (phenol has pKa = 9.88). These materials are incompatible with strong reducing substances such as hydrides, nitrides, alkali metals, and sulfides. Flammable gas (H2) is often generated, and the heat of the reaction may ignite the gas. Heat is also generated by the acid-base reaction between phenols and bases. Such heating may initiate polymerization of the organic compound. Phenols are sulfonated very readily (for example, by concentrated sulfuric acid at room temperature). The reactions generate heat. Phenols are also nitrated very rapidly, even by dilute nitric acid. Nitrated phenols often explode when heated. Many of them form metal salts that tend toward detonation by rather mild shock.
Hazard IdentificationClassification of the substance or mixture
Skin irritation, Category 2
Eye irritation, Category 2
Specific target organ toxicity â single exposure, Category 3
GHS label elements, including precautionary statements
Pictogram(s) 
Signal word Warning
Hazard statement(s) H315 Causes skin irritation
H319 Causes serious eye irritation
H335 May cause respiratory irritation
Precautionary statement(s) Prevention P264 Wash ... thoroughly after handling.
P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/...
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P271 Use only outdoors or in a well-ventilated area.
Response P302+P352 IF ON SKIN: Wash with plenty of water/...
P321 Specific treatment (see ... on this label).
P332+P317 If skin irritation occurs: Get medical help.
P362+P364 Take off contaminated clothing and wash it before reuse.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P319 Get medical help if you feel unwell.
Storage P403+P233 Store in a well-ventilated place. Keep container tightly closed.
P405 Store locked up.
Disposal P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.
Other hazards which do not result in classification
no data available
Handling and StoragePrecautions for safe handling
Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.
Conditions for safe storage, including any incompatibilities
Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.
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Seller Information
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Business Type:
Manufactory
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Main Products:
Ginsenoside Rb1,Ginsenoside Rg1,Ginsenoside Re,Ginsenoside CK,Ginsenoside Rg2,Ginsenoside Rg5
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Location:
Chuangzhi valley,Chuangzhi Industrial Park ,Hanzhong Economic and Technological Dvelopment Zone,Hanzhong City, Shaanxi Province
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Year of Establishment:
2019
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Inquiry History4 Inquiries
Country Product Purchase Quantity Date Posted 
India
2 HYDROXY 1,4 NAPTHOQUINONE
4000.00 KG Oct 10, 2024 
France
2-Hydroxy-1,4-naphoquinone
100 KG Feb 18, 2026
India
2 AMINO PYRIDINE
5000.00 KG Oct 10, 2024
India
STEARYL ISOCYANATE
500.00 KG Oct 10, 2024 Post an enquiry for this product
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