Bulk 99% 4-Hydroxy-2H-1-Benzopyran-2-On/4-Hydroxycoumarin Powder CAS NO.1076-38-6

Bulk 99% 4-Hydroxy-2H-1-Benzopyran-2-On/4-Hydroxycoumarin Powder

Product Description

Physical properties of 4-hydroxycoumarin: white needle-like crystals, melting point 210～216℃. The industrial product is a white or light yellow solid powder with a melting point of 210-216°C. The industrial product is a white or light yellow solid powder with a melting point of 210-212°C. Slightly soluble in cold water, soluble in hot water, ethanol, ether and other organic solvents. There are many synthetic routes for 4-hydroxycoumarin. Commonly used industrial production methods include: Claison condensation of methyl acetylsalicylate under alkaline catalyst conditions; reaction and condensation of acetoacetate and acetylsalicylic chloride.

Specification

Products Function

Derivatives of 4-hydroxycoumarin are vitamin K antagonists. In addition, 4-hydroxycoumarin is also an intermediate of some rodenticides, which is of great research value in the development of anti-cancer drugs. 4-Hydroxycoumarin is also a kind of spice, and coumarins are widely distributed in the plant kingdom. It is mainly used in the synthesis of antithrombotic drugs and 4-hydroxycoumarin type anticoagulant rodenticides (shafarin, dalong, etc.).

Q&A:

1.Are you a manufacturer or trade company
We have our own factory which located in Zhejiang,China.Meanwhile,we also have many parter factorier,so we can supply many kinds of relative products with very competitive price and good quality.

2.How  to start an order

After negoation and communication about the price,quantity,incoterm,etc.,you give me the order contract with stamp,then I sealed it ,send back to you,also give you the proforma invoice,you can arrange the payment according the PI.

3.What’s your payment terms

If sample,small amount: T/T in advance, ,Paypal.
If commercial order ,big amount: T/T in advance,L/C at sight.

4.Can I get a free sample

If this product is not very expensive,and you demand a small sample,we can supply free sample,but not including the shipping cost,you can provide a freight collect account or arrange the shipping cost by Paypal/Westunion.

5.What's the lead time
Generally we send out your order ASAP after payment,normally

small quanitity,3-5days.

big quanitity with stock,5-7days,

if without stock,we have to calculate the production period,then give you the lead tme.

6.How do you ship the order normally

If less than 50kg,will be shipped by express,such as FEDEX,DHL.

If above 50kg,we can ship it by air or sea
For very large quantity,ship it by sea will be the best choice.

7.How do you ensure the quality of your products
Strict QC with 6 steps testing from raw material purchase to finished product.

Meanwhile,we will responsible for the goods quality after be sold.