4,4′-Diamino-2,2′-stilbenedisulfonic acid is the organic compound with the formula (H2NC6H3SO3H)2C2H2. It is a white, water-soluble solid. Structurally, it is a derivative of trans-stilbene, containing amino and sulfonic acid functional groups on each of the two phenyl rings. The compound is a popular optical brightener for use in laundry detergents. It is produced by reduction of 4,4′-dinitro-2,2′-stilbenedisulfonic acid with iron powder.
What is the way you ship?
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
Can the packages be trackable?
YES, we provide tracking number and you can track on internet.
Do you offer domestic shipping/remail shipping?
Yes we can ship to USA/UK/Canada/Australia/Germany etc warehouse first then to you.
Do you ensure your packing , what about customs, what happens if the package is retained?
We concern a lot about our safety system, we pack the orders as secure as possible. If a package is seized at customs, reships of seized orders will be done provided you have a copy of the letter to show us. If you receive a seizure letter, please contact us immediately with a scanned copy of the seizure letter, and also a new address to have your order reshipped to.
Which payment options are available?
Western Union
Bank wire
MoneyGramFAQ
Where do you ship to?
Worldwide.
China
