2,5-diaminobenzene sulfonamide

Chemos® is a leading supplier of ready to use solutions for the lab and chemical industry. We are producing reagents and standards for the analytical lab and supplying raw materials for the chemical and pharmaceutical industry. The base of our solutions are a portfolio of ~ 200.000 raw materials where ~ 50.000 are already available for R+D ready to order in our shop. We are supplying and producing lab quantities from tiny quantities up to 100 metric tons for worldwide shipping.

We are the specialist when you require complete new raw materials or hard to find products with a dedicated specification. Through our network of custom manufacturing companies and our own customizing capabilities, we could offer raw materials and ready to use solutions as requested. Our extended service portfolio around product supply and documentation like safety data sheet service is a unique combination and our offer to you.

Chemos® Solutions through service is the base of our activities. We are a service provider with manufacturing capabilities. We continue where other will stop since more than 24 years. Take advantage from our experience and contact us.

Chemos® is a registered trademark of Chemos GmbH&Co.KG.

Send an inquiry on 2,5-diaminobenzene sulfonamide to Chemos GmbH & Co. KG

Dayang Chem (Hangzhou) Co.,Ltd. is a comprehensive entity which specializes in development, production and trade of pharmaceutical, agrochemical and dyestuff intermediates as well as some special type reagents. We have an own factory and share enterprises. We act also as agent of many chemical factories and promote their products to the international market at very competitive price.
We take "Credi first, Clients supreme" as our aim. We expect to cooperate with more partners in the world by providing superior quality chemicals and best service.

Send an inquiry on 2,5-diaminobenzene sulfonamide to Dayang Chem (Hangzhou) Co.,Ltd.

LEAPChem, a specialized fine chemicals supplier for research, development and production.
LEAPChem provides nearly 5,000 rare and innovative chemical products to support the evolving needs of our customers in research & bulk manufacturing activities.
As a highly customer-oriented enterprise, we are committed to providing high-quality customer services and products to our global customers in a cost-effective and efficient manner.
Our client list includes many major pharmaceutical and science companies, universities, research institutions and chemical catalogue companies.
Methodology: Sound and Stable;Active and Innovative.
Attitude: Conscientious; Ingenious.
Goals: Customer’s Satisfaction
We regard client’s success as our success.
At LEAPChem we strive to be the preferred supplier for efficiency increasing and cost lowering in your Research&Production.
To achieve this strategic vision, we always push ourself to exceed our customer's requirement. By focusing 'Beyond Your Expectation' we continually expand our product line, enhance our systematic management and human resources.
Welcome to contact us and we look forward to becoming your preferred partner.


Send an inquiry on 2,5-diaminobenzene sulfonamide to Leap Chem Co., Ltd

Minakem is a unique fine chemical manufacturer specializing in custom manufacturing for the pharmaceutical industry.

With over 50 years experience, our cGMP facility located in the north of France offers a wide range of expertise and experience. Over 25 PhD’s are dedicated to process development, organic synthesis and analysis. SEAC’s strength clearly lies in taking complex, high-value intermediates and API’s from the laboratory and efficiently scaling-up procedures for commercial optimization. Over 70 new syntheses are achieved each year and no 'sample' ever leaves our laboratories without a fully scalable process ready for the plant. Our cGMP kilo lab and pilot plant are fully integrated on-site with commercial operations making total reactor capacity over 150 m3.

With its specific organization of the scientific and technical resources, MINAKEM can achieve efficient scale-up in a timely fashion and deliver process and quantities in compliance with the timing of the development of your new molecules.

Specific technologies include extreme temperature conditions (-100ºC to +300ºC), hydrogenations and reactions under pressure, cyanidiation, chiral and heterocyclic chemistries. In addition to our strong foundation in manufacturing cyclic alkanes, we also are capable of handling specific reagents like Zn(Et)2, NaBH4, BuLi, Br2, Cl2, ClSO3H, NH2,-NH2, and LDA to name a few.

Safety of our employees and care of the environment is also evident and our plant is SEVESO II approved.

Project confidentiality is paramount at Minakem. We have prepared and currently hold 4 DMF's and one VMF's on record. An FDA inspection is scheduled for July 2002.
Send an inquiry on 2,5-diaminobenzene sulfonamide to Minakem SAS