CAS No.: | 87-66-1 |
---|---|
Formula: | C6h6o3 |
EINECS: | 201-762-9 |
Type: | Pharmaceutical Intermediates |
Appearance: | Powder |
Quality: | Industrial |
Samples: |
---|
Customization: |
---|
Suppliers with verified business licenses
Pyrogallol (Pyrogallol, pyrogallol, pyrogallol, pyrogallol acid, or pyrophenol) is one of the aromatic compounds. It's a very strong reducing agent. The first person to make it was Karl Wilhelm Scheler, who made it by heating gallic acid in 1786. In alkaline solutions, pyroquinone absorbs water and turns from colorless to purple. It can also absorb oxygen. Its uses include developer for photographic negatives, hair coloring, dyeing, oxygen absorption in gas analysis and experiments, and fungicide.
ITEM |
STANDARD |
RESULT |
Appearance |
White Crystalline Powder |
Conform |
Loss on Drying |
0.5% Max |
0.15% |
Melting Point |
131-135ºC |
132.8-134.4ºC |
Heavy Metal(PB) |
5.0ppm Max |
Conform |
Chlorides |
0.002% Max |
Conform |
Sulphate |
0.005% Max |
Conform |
Purity |
99.0% Min |
99.55% |
Hebei yanxi chemical co. LTD. has expanded a compositive entity from initially only as a small manufacturer. The company dedicated to the development, production and marketing of chemicals. Main products are cas: 6080-56-4, 2-phenylacetamide (cas103-81-1), After many years of efforts, we have established stable and friendly business relations with dozens of European and American pharmaceutical companies, multinational chemical companies and importers.
1) Timely communication, reply within 12 hours.You can leave any messages on our whatsapp or send email to us.
1)Best quality in your requirement
2)Competitive price in china market
3)Mature technical support
4)Professional logistic support
5 )Full experience of large numberscontainers loading in chinese sea port
6 )Fast shipment by reputed shipping line
7) Packing with pallet as buyer's special request
8) Best service after shipment.
9) Cargoes together with container after-sales service available
10) Full experience in export
11)Raw materials from chinese origin
Q:How can I get the price?
A:We usually quote within 24 hours after we get your inquiry.
If you are very urgent to get the price, please email us or contact us in other ways so that we can offer you a quote.
Q:What is the way you ship?
A:Express: FedEx, UPS, EMS, DHL, USPS, TNT, DPD, Aramex etc
Our way of shipping the products is universal and secure.
The company name and other contents related to pharmacy are not written on the package slips.
The way of packing is regularly changed for a secure delivery.
The packages are small in order to avoid unwelcomed questions . If the order is big, then it will be divided into two or more packages.
Suppliers with verified business licenses