ANALYSIS | SPECIFICATION |
Assay | ≥99.5% HPLC |
Appearance | White powder |
Hydro Quinone | Negative |
Melting Point | 203-206(±1)ºC |
Specific Optical Rotation | [a] 20 D= + 174.0°- +186.0° |
Infrared peak value | 1514cm -1 ; 1229 cm -1 ; 1215 cm -1 ; 1059 cm -1 ; 1034 cm -1 |
Solubility | Soluble in water, slightly soluble in ethanol |
Clarity | Solution should be clarify, none suspended matters |
PH(1% water solution) | 5.0-7.0 |
Loss on drying | ≤0.5% |
Residue on Ignition | ≤0.5% |
Heavy metals | ≤10ppm |
Lead | ≤2ppm |
Arseniic | ≤2ppm |
M | ≤1ppm |
Total Plate Count | ≤100cfu/g |
Total Yeast & Mold | ≤50cfu/g |
E.Coli | Negative |
Salmonella | Negative |
Staphylococcus | Negative |
Packaging | · 1kg/aluminium foil bag, with two plastic bags inside. | Delivery | ≤50kg, Express delivery recommended, usually called as DDU service; |
· 25kg/fiber drum, with two plastic bags inside. | ≤500kg,Air shipping recommended, usually called as CIF service; | ||
Size · 42cm*H52cm,0.08m3/drum. | >500kg, sea shipping recommended, usually called as FOB, CFR, or CIF service; For high value products, please select air shipping and express delivery for safety. |
As for pre-sales service:
1 We can provide you high quality products with factory price
2 Easy communication and comfortable cooperation
3 Better payment terms : T/T, Paypal, moneygram, credit card, etc
As for in-sales service:
1 We offer fast and safe shipping services, takes only 5-7 days.
2 Various shipping ways : by air./ by sea / by courier (FedEx)
3 Provide technical documentation support when required.
As for after-sales service:
1 Provide helps when there's any custom issues
2 Product compensation when it's hold in clearance
Q1: When will the product be shipped after payment?
---The parcel will be get ready and shipped within 1 day.
Q2. How does your factory control quality?
All the raw material purchasing and production quality control are strictly following the ISO9001: 2008 management system. Besides, the full-featured detection equipment and GMP quality management system provided the strongest guarantee for a high-quality product.
Q3: How long will it take to receive the parcel?
--3 days for the US market; 4-6 days for the others.
Q4: What can I do if I don't have the ability to clear the custom?
--We got experience after doing export for many years, so don't worry we can handle that.
Q5: Can I get some samples?
---Yes.
Q6: How to contact us ?
---You can chat with us by Trade manager,whatsapp,you can choose your interested products and send inquiry to us or send email to me, you will get our reply.