3,3'-dimethyl-4,4'-biphenylene diisocyanate

AK Scientific provides fine chemicals and advanced intermediates to our customers worldwide. Currently, we have over 16.000 in stock, ready to ship products, at our California warehouse and this number is increasing weekly. All these products are stocked in multiple, convenient, sizes to fit your specific needs. Purchases are shipped on the same day your order is placed (before 4PM, Pacific Time) to ensure on-time delivery.
AK Scientific products can be searched by Name (or partial name, keyword), Catalog, CAS, and MFCD# on the website. Our website is updated frequently to add new products and to incorporate customer feedback.

Aside from product packaging and pricing, the AK Scientific website provides additional information, such as physical properties and safety advice.

We are committed to keeping all our products in stock for immediate delivery.

Bulk Products

The majority of our products are available in bulk quantities. Inquiries for larger amounts are always welcome.

On time delivery, Competitive prices, Guaranteed quality, Real-time project communication.

Send an inquiry on 3,3'-dimethyl-4,4'-biphenylene diisocyanate to AK Scientific, Inc.

We, BuGuCh & Partners, are an international acting and innovative company, leading in developing and manufacturing.

We operates major facilities in North America, Europe and the Pacific Rim, as well as facilities in China, Japan and Saudi Arabia operated through joint ventures.

We maintain independently or are partners of some production sites in Europe, Asia and South America. Our global network is a strength.

Our products range from natural gas, oil and basic chemical products through innovative intermediates to specialties, high value-added chemicals, crop protection products and pharmaceuticals.

Send an inquiry on 3,3'-dimethyl-4,4'-biphenylene diisocyanate to BuGuCh & Partners

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 3,3'-dimethyl-4,4'-biphenylene diisocyanate to Dayang Chem (Hangzhou) Co.,Ltd.

[February 12, 2020 - Evonik acquired Wilshire Technologies Inc.]

WILSHIRE TECHNOLOGIES, Inc., is a leader in innovative process chemistry and development, producing value-added reactants, reagents and intermediates at significant cost-savings to our customers. We offer the chemical community a broad range of organic chemicals -- each backed by extensive technical information and service support - as well as custom syntheses -- kilogram to tons -- tailored to our clients' specific needs.


Send an inquiry on 3,3'-dimethyl-4,4'-biphenylene diisocyanate to Evonik ( formerly Wilshire Technologies, Inc. )

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 3,3'-dimethyl-4,4'-biphenylene diisocyanate to Leap Chem Co., Ltd

Skyrun Industrial Co.Limited, established in 2003, a state-controlled company (By Skyrun Corp. & High Hope) in China, specializing in developing, producing and handing raw pharmaceutical material and intermediates. We have expanded a compositive entity from initially only as a small manufacturer. We have extensive knowledge of domestic and international pharmaceutical markets. Our working range can be start from small amount in research stage to big bulk for industrial production.
Send an inquiry on 3,3'-dimethyl-4,4'-biphenylene diisocyanate to Skyrun Industrial Co., Ltd.

Founded in 1995, TIANJIN ZHONGXIN CHEMTECH CO.,LTD. (ZX CHEMTECH) has been striving to meet the requirements of customers through an understanding of their individual needs, providing high quality products and value-added services, sourcing for a wide range of chemicals for various clients worldwide. Based on a quick response and strong emphasis on customer satisfaction, with an experienced team of professionals, ZX CHEMTECH has grown quickly to become a one stop solution and service provider for many partners in the world.

Supported by R&D professionals and production bases located in GuangXi, ShangHai, JiangSu and ZheJiang provinces in China, working under an ISO9001 certified management system, ZX CHEMTECH has maintained a steady annual growth and this trend is forecasted to continue in the foreseeable future with the enough confidence coming from the fact that ZX CHEMTECH has become a conglomerate company in:

* Fuel and Refinery Additives
* Polyurethane (PU) Industry and UV Photoinitiators
* Fine and Specialty Chemicals
* Cutsom Synthesis and Pharmaceutical Intermediates

Over the years, a reputation for excellence both as a domestic and global supplier has been established steadily.

In order to offer a world class and high efficient customer service, the overseas offices in South Africa, the United States, Brazil and Russia were established separately since 2002, other concerns are also under the planning. In the meantime, to double-ensure that all products reach our customers in a good fashion and maximum efficiency, some logistics centers at main Chinese ports such as Shanghai, Tianjin, Shenzhen, Guangzhou and Qingdao were set up. ZX CHEMTECH owns the strong basis and support for the stable development.

Now we are confident and proud to say: Working with ZX CHEMTECH, you will save time and money, you will get what you need. For more information on how ZX CHEMTECH 's specialist team can serve you, Please contact freely,Wish to be your reliable partner!
Send an inquiry on 3,3'-dimethyl-4,4'-biphenylene diisocyanate to Tianjin Zhongxin Chemtech Co., Ltd.

Zehao Industry Co., Ltd. (“Zehao”) established in 2010, is a key chemical manufacturer and supplier in China. We are engaged in supply high quality pharmaceuticals and intermediates, food and feed additives, herbal extracts, agrochemicals and fine chemicals etc. We also customize high value-added chemicals and intermediates for the customer.

Send an inquiry on 3,3'-dimethyl-4,4'-biphenylene diisocyanate to Zehao Industry Co., Ltd.