Product Description
Fluorescent Brightener OB-1 / 4,4'-Bis(2-benzoxazolyl)stilbene / Optical Brightening Agent OB-1 cas 1533-45-5
| Product Name: |
2,2'-(1,2-Ethenediyldi-4,1-phenylene)bisbenzoxazole |
| Synonyms: |
4,4'-BIS(2-BENZOXAZOLYL)STILBENE
Fluorescent Brightener OB-1
Optical Brightening Agent OB-1 |
| CAS: |
1533-45-5 |
| MF: |
C28H18N2O2 |
| MW: |
414.45 |
| EINECS: |
216-245-3 |
| 2,2'-(1,2-Ethenediyldi-4,1-phenylene)bisbenzoxazole Chemical Properties |
| Melting point |
>300 °C(lit.) |
| Boiling point |
533.34°C (rough estimate) |
| density |
1.2151 (rough estimate) |
| refractive index |
1.5800 (estimate) |
| storage temp. |
Sealed in dry,Room Temperature |
|
Packing&Dlivery
The packing methods according products feature and customs requires.
| 1-24 kilograms |
Aluminium foil bag and carton |
| >25 kilograms |
Carton drum |
| Minimum order quantity |
1g-1kg,according to product attributes |
| Price |
Negotiable |
| Lead time |
Within 3days upon receipt of payment |
| Delivery time |
About 3 days |
| Packaging details |
Aluminum foil bags or fiber drum |
| Trade terms |
CIF,CFR, FOB |
| Payment terms |
T/T,West Union,Paypal, Money Gram |
| Port |
Shanghai Port,Guangzhou Port,Tianjin Port |
Transport Modes of transport adopted sea,land and air transportation,to ensure the fastest way to transport the goods safely to the location specified by customer.
Delivery by express:DHL,TNT,UPS,FedEx and EMS.
Payment Term
Bank transfer and BTC also available
Company Profie
Hebei Guanlang Biotechnology Co., Ltd. is the leading manufacturer for cosmetic materials in China.
Which located in Shijiazhuang, Hebei Province.
We are specialized in pharmaceutical intermediates, veterinary drug intermediates and dyes intermediates,After ten years development, Hebei Guanlang Biotechnology Co, . Ltd has become a Diversified development company, not only involves in chemicals, but also real estate, clothes, agricultural products and so on.
So far, Hebei Guanlang Biotechnology Co, . Ltd has business in more than 35 countries, most big customers come from Europe and America, because among the suppliers in China, Guanlang can always make the product quality best, some of the products from Guanlang can reach the purity of 99.9+, such as carbomer. This is the important reason for customers who choosing Guanlang.
In future, Hebei Guanlang Biotechnology Co, . Ltd must become to a more important trade bridge for China and foreign countries especially in pharmaceutical industries
Our lab and factory
Our advantages
FAQ
Q1: Can you supply samples?
Yes, we can provide some free sample, but the shipping cost should be on the customers' account. You can either pay the shipping cost or arrange a courier to collect the samples.
Q2:What's the MOQ?
Differentiate according to the product value,1 gram or 50 kilograms and 100 kilograms.
Q3. How can I release the payment to you ?
We can receive your payment by T/T, ESCROW or Western union which is recommended, and we can also receive by L/C at sight.
Q4:How about delivery leadtime ?
About 3-5 working days after receipt of your payment.
Audited Supplier 
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