Product Name: UV stabilizer UV-531 / Benzophenone-12 / BP-12 CAS 1843-05-6

Chemical Name:Octabenzone

CAS No.:1843-05-6

Molecular Formula:C21H26O3     

Molecular Weight:326.43

  

Specifications:                  

Item	Index
Melting point ,°C	47-49
Assay	98%
Light Transmittance	425nm, % ≥ 90 500nm, % ≥ 95
Ash Content (%)	≤ 0.1

Application:  

Ultraviolet Absorbent UV-531 is a kind of high-effective anti-aging auxiliary with remarkable performance, can absorb 240-340 nanometers of ultraviolet rays. It has good characteristics, such as light color, nonpoisonous, good compatibility, slight transport property, easy processing and so on. It has the greatest protective action on the polymer, contributes to reducing the color and luster, it can suspend the yellowing and block physics performance loss at the same time. It is widely used in PE , PVC , PP , PS , PC ,organic glass, polypropylene fibre and ethylene vinyl acetate,etc. And it provides good light stability effect to the sorts of dry phenolic aldehyde and alkyd varnish, polyurethane, acrylic acid, epoxy and other air drying products and automobile rebuilt paint, powder coating, polyurethane, rubber products ,etc.

Other UV absorbers or Photoinitiator:

Product name	CAS NO.
BP-12(UV-531)	1843-05-6
BP-3(UV-9)	131-57-7
BP-1(UV-0)	131-56-6
BP-2	131-55-5
BP-4(UV-284)	4065-45-6
BP-5	6628-37-1
BP-6	131-54-4
BP-8	131-53-3
BP-9	76656-36-5
Avobenzone	70356-09-1
OCTOCRYLENE	6197-30-4
Octyl Salicylate	118-60-5
OMC	5466-77-3
Homosalate	118-56-9
UV-P	2440-22-4
UV-1577	147315-50-2
UV-329	3147-75-9
UV-326	3896-11-5
Photoinitiator TPO	75980-60-8
Photoinitiator 819	162881-26-7
Photoinitiator 907	71868-10-5
Photoinitiator 307	94576-68-8

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why choose our comp

any
1. quality
our products meet msds safe standard and we have iso and other certificate so yan can get high quality products from our company.
2. price
we are the company which is the joint of trade and industry so we cao provide the competitive price and high quality product.
3.packing
we can do according to the customers' request.
4.transport
ems,dhl, tnt, ups ,fedex, by air, by sea
dhl express, fedex and ems for quantity less than 50kg, usually called as ddu service; 
sea shipping for quantity over 500kg; and air shipping is available for 50kg above;
for high value products, please select air shipping and dhl express for safe;
5.service
we offer specialized logistic service including export declaration,customs clearance and every detail during shipment,this makes us able to offer you one-stop service from the order to the products transported to your hand.
we will try our best to satisfied you.
1. tailor-made for every customers. 
2. third-party test for the products you demand. 
3. test your counter-samples and produce them for you. 
4. best discount for old customers. 






Thanks for your considering of Hebei Guanlang Biotechnology Co., Ltd.(Crovell). Crovell is a fast growing intermediates company,Which located in Shijiazhuang,Hebei Province.
Crovell is specialized in pharmaceutical intermediates, veterinary drug intermediates and dyes intermediates,such as phenylacetamide, dimethylamine hcl, benzyl chloride etc., Crovell also supply various industrial chemicals for customers, such as citric acid,potassium chloride etc.
After ten years development,Crovell has become a Diversified development company,not only involves in chemicals, but also real estate ,clothes ,agricultural products and so on.
So far, Crovell has business in more than 35 countries,most big customers come from europe and America, because among the suppliers in china,Crovell can always make the product quality best, some of the products from Crovell can reach the purity of 99.9+, such as 2-phenylacetamide. This is the important reason for customers who choosing Crovell.
In future, Crovell must become to a more important trade bridge for china and foreign countries especially in pharmaceutical industries.

 


Packaging Details:

25kgs packaging Fiber drum outside and plastic bag inside 1-25kgs packaging aluminium bag outside and double plastic bag inside

Delivery Detail: within 10 days when get the payment.

Shipping :

We have Professional shipping agent, based on customers ' demand for transport

By express :FEDEX,DHL,EMS ,UPS,TNT ect.

By SEA and By AIR

Q: How to start orders or make payments?

A:You can send our your Purchase order(if your company has), or just send a simple confirmation by email or by Trade Manager, and we will send you Proforma Invoice with our bank details for your confirmation, then you can make payment accordingly.

Q: How to confirm the Product Quality before placing orders? 

A:You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.

Q: What's your MOQ?

A:For the high value product, our MOQ starts from 1g and generally starts from 10gs. For other low price product, our MOQ starts from 100g and 1kg.


Q: Is there a discount? 

A: Yes, for larger quantity, we always support with better price. 


Q:How do you treat quality complaint? 

First of all, our quality control will reduce the quality problem to near zero. If there is a quality problem caused by us, we will send you free goods for replacement or refund your loss.

Q:How to contact us ?

You can choose your interested products and send inquiry to us.You can dial our telephone directly, you will get our reply.
Send Email to us.