Hi Suppier,I am a buyer from Tejas Polymers and Chemicals located in India. I am interested in this style of Anthraquinone and in doing business with you.Could you please send me the quotation from this with the details as below:State,CAS No.,Model Do you have any quality assurance certificates?Hope you reply to all my questions so I could proceed with buying.Thank you for your timePrafful ChouhanTejas Polymers and Chemicals