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If you are sourcing 2-amino-4-methylaminobenzene sulfonic acid from China ,just feel free to inquire

Company：	Shanghai Z-CHEM Chemical Co.,Ltd.
Contact：	Ms.Guo
Phone：	021-58851069
Mobile phone：
Fax：	021-58851178
E-mail：	sales@shzchem.com
Website：	http://www.shzchem.com
Address：	Rm409,410 Shanghai ship &shipping research institute no.600 Minsheng Road, Shanghai 200135 China
Zip Code：	200135

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2-amino-4-methylaminobenzene sulfonic acid