_1730079799361.webp "Propyl Gallate")
Propyl Gallate
【CAS No.】: 121-79-9
【Molecular Formula】:C10H12O5
【Plant Source】: Gallnut
【Active ingredients】: Propyl Gallate
【Specification】: Propyl Gallate 98%
【Appearance】: White to light beige powder
Introduction
Propyl gallate (PG), also known as propyl gallate, is a synthetic oil-soluble antioxidant. Oil-soluble antioxidants are all phenolic compounds, including butylated hydroxyanisole (BHA), butylated hydroxytoluene (BHT Chemicalbook), tert-butylhydroquinone (TBHQ), etc., which can provide hydrogen atoms to combine with free radicals produced by the auto-oxidation of oils and fats to form a relatively stable structure, blocking the chain auto-oxidation process of oils and fats, thereby achieving the purpose of anti-oxidation.
【Source】It is obtained by esterification of gallic acid and propanol at 120°C with sulfuric acid as catalyst. After neutralization, the solvent is distilled off and the residue is recrystallized from ethanol-water solution.
【Appearance】White to light beige powder.
【Chemical composition】Propyl Gallate(C10H12O5)
【Melting point】146-149℃
【Odor】Odorless
【Water solubility】0.35 g/100 mL (25℃)
Certificate of Analysis
|
Analysis |
Specification |
Results |
|
Assay（HPLC） |
98% |
98.5% |
|
Appearance |
Yellow-orange powder |
Complies |
|
Identify Method |
Thin-layer chromatography |
Complies |
|
Mesh Size |
≥95% through 80 mesh |
Complies |
|
Heavy Metals |
≤10ppm |
Complies |
|
PB |
≤0.5ppm |
Complies |
|
AS |
≤0.5ppm |
Complies |
|
CD |
≤0.5ppm |
Complies |
|
HG |
≤1ppm |
Complies |
|
Loss on Drying |
≤ 1.0% |
0.3% |
|
Ash |
≤ 1.0% |
0.2% |
|
Total plate count |
≤1000cfu/g |
Complies |
|
Yeast and mold count |
≤100cfu/g |
Complies |
|
Total coli forms |
≤100cfu/g |
Complies |
|
E. coli |
Absent/10g |
Complies |
|
S. aureus |
Absent/10g |
Complies |
|
Salmonella |
Absent/10g |
Complies |
|
Storage Packed in paper-drums and two plastic-bags inside.N.W.:20kgs In a well-closed container,Protected from light, in a dry place at temperature ≦25℃. Shelf life 3 years after its production date if sealed and stored away from direct sun light and heat.
|
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Main Functions
1. Propyl gallate (PG) has antioxidant effect;
2. It has ultraviolet effect;
3. It can be used as food preservative
Application
1.Propyl gallate (PG) is used as antioxidant additive in fat, oily food and pharmaceutical preparations;
2.Used as an anti-quencher in fluorescence microscopy to reduce the photobleaching of fluorescent probes such as rhodamine and fluorescein；
3. It can be used as an effective antioxidant for liver protection in vivo and in vitro.
Packing
For powder products, we usually send the products together with cartons or fiber drums.For liquid products, we usually send the product together with a plastic.
Our packaging methods are 1 kg/aluminum bag, 25 kg/box, and 25 kg/barrel. For some products that require special packaging during transportation, we will carry out more detailed packaging.
Transportation
We support shipping by air, sea, FedEx, DHL, TNT, EMS, UPS, SF, and other carrier.
Our laboratory and Factory
As a professional plant extract supplier, our quality inspection department is equipped with the most advanced testing and identification instruments, such as UPLC, HPLC, UV and TT (active ingredients) GC and GC-MS (solvent residue), ICP-MS ( Heavy metals), GC/LC-MS-MS (pesticide residues), HPTLC and IR (identification), ELIASA (ORAC value), PPSL (irradiation residues), microbial detection, etc.
Contact us
To view our brochure or discuss a bulk order, contact us at information@sxrebecca.com.
FAQ
How do I make an order?
For Further Information, please contact: information@sxrebecca.com. We will connect you with one of our account managers who will be happy to assist you with your order.
When will my order ship?
Products in stock usually ship within 24-48 hours of your order being received and processed. If a product is not in stock, delivery time varies but is generally about 3-5 days, depending on exact order quantity.
What is your Return Policy?
Your satisfaction is very important to us. If there are any problems with the product you receive, please contact your account manager within 10 days of receiving of your order. Upon receipt and inspection, Shaanxi Rebecca will issue a credit, refund or replacement.
How can I pay for my order?
We accept T/T(Telegraphic Transfer)，L/C. etc.
Do you test your products?
Yes, we test for all incoming raw materials before production of the extracts. Testing before any processing takes place helps us to deliver you the highest quality ingredients at the lowest possible prices.
