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Personne àcontacter xile
xiaoshan, hangzhou, zhejiang
propyl paraben CAS:******3 appearance:colorless crystals or white crystalline powder purity(on dry base)%:*9.****0.5% identification:qualified melting point:****8 organic volatile impurities:qualified physicay and chemical properties:it is white crystalline powder, freely soluble in alcohol and ether, but very slightly soluble in ***** relative density(d**0)is 1.***0, and index of refraction is (nD*0)1.***0. specification:BP USP