Cosmetic Ingredients, Cosmetic Preservatives, Biocides manufacturer / supplier in China, offering 2, 4-Dichlorobenzonitrile for Organic Synthesis Intermediate CAS: 6574-98-7, Pharm Chemical O-Nitrobenzoic Acid 2-Nitrobenzoic Acid CAS: 552-16-9, Organic Chemicals 99% Purity Tricaine CAS: 582-33-2 and so on.