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<title><![CDATA[EC21 Product Catalogs - pc cas]]></title>
<link><![CDATA[https://www.ec21.com/ec-market/pc_cas--0549/1/pc cas.html]]></link><item>
<title><![CDATA[Optical Brightener OB for Plastics]]></title><link><![CDATA[https://ec21serena.en.ec21.com/Optical_Brightener_OB_for_Plastics--9658361_9658362.html]]></link><description><![CDATA[Product Name
Optical Brightening Agent OB-1
Chemical Name
2.2’-(4.4’-diphenol vinyl) dibenzoxazol
CAS No.
1533-45-5
C.I. No.
393
Structural Formula
Molecular Formula
C28H18N2O2
Molecular Weight
4]]></description><pubDate><![CDATA[20220926]]></pubDate></item>
<item>
<title><![CDATA[UV Absorber UV PR-25 Cas No.7443-25-6]]></title><link><![CDATA[https://hhochem2017.en.ec21.com/UV_Absorber_UV_PR_25--10554950_11596600.html]]></link><description><![CDATA[Chemical name: Propanedioic acid, [(4-methoxyphenyl)-methylene]-dimethyl ester
CAS No.: 7443-25-6 
Molecular formula: C13H14O5
Molecular weight: 250
Appearance: White to crystalline powder
Assay, %: ]]></description><pubDate><![CDATA[20230310]]></pubDate></item>
<item>
<title><![CDATA[UV Absorber UV 531  Cas No.1843-05-6]]></title><link><![CDATA[https://hhochem2018.en.ec21.com/UV_Absorber_UV_531_Cas--11000934_11000951.html]]></link><description><![CDATA[Chemical name: 2-Hydroxy-4-n-octoxybenzophenone
CAS No.:1843-05-6 
Molecular formula:C21H26O3
Molecular weight:326
Appearance: Pale yellow crystalline powder
Melting point,℃:47-49
Purity (HPLC), %:]]></description><pubDate><![CDATA[20230310]]></pubDate></item>

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