Optical Brightener Fluorescent Brightener 184 OB-1
CAS No |
7128-64-5 |
Structural No |
C.I.184 |
Molecular formula |
C26H26SO2N2 |
Molecular weight |
430 |
Melting Point |
200-202oC |
Assay |
98% min |
Appearance |
Slight greenish yellow powder |
Structural formula:
Optical brightener OB-1 and Optical Brightener OB are chemical compounds that absorb light in the ultraviolet and violet region (usually 340-370 nm) of the electromagnetic spectrum, and re-emit light in the blue region (typically 420-470 nm). Fluorescent activity is a short term or rapid emission response, unlike phosphorescence, which is a delayed emission. These additives are often used to enhance the appearance of color of plastic and fabric, causing a "whitening" effect, making mterials look less yellow by increasing the overall amount of blue light reflected.
Optical Brightener OB-1 is a fluorescent whiatening agent of the thiophenediyl benzoxazole class, is commonly added to plastic products to replace whitening agents removed during producting proces. Optical brightener OB-1 is highly effective in polymer substrates such as engineering plastics, PE, PC, PVC, PS, ABS and PP, adhesive and other organic substrates. Especially rigid plastic(Polyethylene pipe, polypropylene pipe, Thermoplastics pipes, Thermosetting plastic pipe, etc ) resulting in their strongly fluorescent appearance under UV illumination.
Optical Brightener OB-1 is also used in papers and fiber, Paper brightness is typically measured at 457 nm, well within the fluorescent activity range of brighteners. Paper used for banknotes does not contain optical brighteners, so a common method for detecting counterfeit notes is to check for fluorescence.
The photos of our Optical Brightener OB-1 packaging and shipment.
Guangzhou Shiny Co., Ltd., established in 2007, is a dynamic technology-based chemicals company, dedicated to the development,production and marketing in the fine chemical industry, composed of 4 manufacturing bases, 3 R&D centers and one import & export company.
We have obtained ISO9001:2008 international quality certification. Our services cover the whole range from small amount (kilogram) for research to large bulk of multi-tons for industrial production, synthesis capacity from 1 liter to 3,000 liters are available. GMP compliant quality assurance system and stringent regulations on cosmetic and pharmaceutical industries enable us to enjoy more trust and cutting-edge strength in the local and world market.
Guangzhou Shiny focuses on the following sectors:
--Aromatic Compounds, Cinnamic derivatives, Esters of Phenylacetate, etc.
--UV Absorbers, for cosmetic, rubber and plastics, etc.
--Personal care and home-care ingredients (disinfectors, surfactants, etc.)
--Optical brighteners for detergent and plastics, etc.
--Pharmaceutical intermediates
-- Active Pharmaceutical Ingredients(API)
To become ‘Your One Stop Specialty Chemicals Supplier’ is the goal we are striving to reach.
We are committed to surpassing your expectations and hope by timely delivering the best quality products at the most competitive prices from China, and providing considerate and reliable after-sales service and support.
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