| Customization: | Available |
|---|---|
| CAS No.: | Peptides |
| Formula: | Peptides |
|
Still deciding? Get samples of US$ 100/kg
Request Sample
|
Suppliers with verified business licenses
We guarantee that packages can reach your hand safely.MOQ at least 1kg ~ 25kg.
100% safe customs clearance and delivery to the door. Secret packages are required.
USA / Canada / Europe / UK / Spain / Germany / France / Australia / Southeast Asia / Japan / South Korea / Brazil / South America / Poland/ Chile, etc.
There are USP / BP / EP / CP standards. We are selling chemical and chemical powder liquid logistics transportation together.
Technical data sheet ( Our melatonin conform to the latest USP EP standards )
| ITEM | STANDARD | TEST METHOD | |
| Appearance | A white to off-white crystalline powder. | Visual observation | |
| Solubility | Slightly soluble in water | USP<1236> | |
| Identification | IR | USP<197K> | |
| UV | USP<197U> | ||
| HPLC | USP<621> | ||
| Chloride and sulfate | 0.02%MAX | USP<221> | |
| Loss on drying | 1.0% MAX | USP<731> | |
| Residue on ignition | 0.1% MAX | USP<281> | |
| Melting range | 117-120ºC | USP<741> | |
| Particle size | ≥98% through 80 mesh | USP<429> | |
| Microorganism | Total Plate Count | 1000 cfu/g MAX | USP<2021> |
| Yeasts & Molds | 100 cfu/g MAX | USP<2021> | |
| E.Coli | Absent/10g | USP<2022> | |
| Salmonella | Absent/10g | USP<2022> | |
| S.aureus | Absent/10g | USP<2022> | |
| Residual solvent | Ethanol | 500ppm MAX | USP<467> |
| Density | Tap density | 0.45g/mL MIN | USP<616> |
| Bulk density | 0.35g/mL MIN | USP<616> | |
| Clarity and degree of opalescence of liquids | Clear in the 1% melatonin solution of ethanol | USP<641> | |
| Heavy metals | Total | 10ppm MAX | USP<231> |
| Pb | 1ppm MAX | USP<2232> | |
| As | 1ppm MAX | USP<2232> | |
| Hg | 0.1ppm MAX | USP<2232> | |
| Cd | 0.5ppm MAX | USP<2232> | |
| Related compounds | Individual impurity | 0.1% MAX | USP<621> |
| Total impurity | 1.0% MAX | USP<621> | |
| Assay(on the dried basis) | 98.5~101.5% | USP<621> | |
| Melting point | 116.5-118 °C (lit.) |
| Boiling point | 374.44°C (rough estimate) |
| density | 1.1099 (rough estimate) |
| refractive index | 1.6450 (estimate) |
| Fp | 9ºC |
| storage temp. | -20°C |
| solubility | Soluble in ethanol to at least 50mg/ml |
| pka | 16.26±0.46(Predicted) |
| form | Powder |
| color | white to off-white |
| Countries | USA | USA warehouse | UK | Australia | Australia warehouse | Russia | Russia warehouse | |
| Shipping Time | 10-15 days | 1-4days | 5-7 days | 7-12 days | 1-4days | 2-3 weeks | 1-4days | |
| Package | Disguise/Foil Bags | |||||||
| Remark | Picked up from Los Angeles warehouse |
Picked up from Sydney/Melbourne warehouse |
Picked up from Moscow warehouse |
|||||
| Countries | Canada | Canada warehouse | Malaysia | Mexico | Mexico warehouse | New Zealand | ||
| Shipping Time | 15-20 days | 1-4days | 7-10 days | 15-20 days | 1-4days | 10-15 days | ||
| Package | Disguise/Foil Bags | |||||||
| Remark | Picked up from vancouver/toronto warehouse |
Picked up from Mexico city warehouse |
||||||
| Countries | Iran | South Africa | Egypt | Kazakhstan | ||||
| Shipping Time | 15-20 days | 15-20 days | 15-20 days | 15-20 days | ||||
| Package | Disguise/Foil Bags | |||||||
| Remark | ||||||||
| Countries | Netherlands | Switzerland | Germany | Poland | ||||
| Shipping Time | 10-12 days | 10-12days | 7-10 days | 10-12 days | ||||
| Package | Disguise/Foil Bags | |||||||
| Remark | Large parcels of 1-100 kg have safe, fast and professional channels to EU countries. | |||||||
We have our own warehouses in Australia, the United States, Germany, Canada and other countries, which greatly saves shipping time and customers can receive their packages faster. In addition, customers can also choose door-to-door pickup service.Provide professional and efficient services to speed up your goods delivery time
Service:
1. Any inquiries will be replied within 12 hours.Q1: How to confirm the product quality before placing an order?
1. You can get some samples of products.
2. You can also send us the specifications or your requirements, and we will customize the product for you.
Q2: How can I contact you?
Contact us via email or Whatsapp. Average response time is 0-4 hours during working hours and less than 24 hours during non-working hours.
Q3: How to place an order?
--Contact us in any of the above ways..
--Leave us a message with the product you want.
--Description of order Quantity.
--Please tell us your shipping address.
--The sales manager gives you a quotation.
--Same day delivery after payment.
https://pukaxincailiao.en.made-in-china.com/contact-info.html
){kind=link}