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In the vast and complex world of chemistry, accurate identification of substances is fundamental. This is where CAS Registry Numbers®, or CAS numbers, play an indispensable role. Assigned by the Chemical Abstracts Service, a division of the American Chemical Society, these unique numerical identifiers are crucial for unambiguously identifying chemical substances.
What is a CAS Number?
A CAS number is a unique identifier consisting of three parts, separated by hyphens, such as 21934-68-9. It is assigned to virtually every chemical substance described in the open scientific literature. Unlike chemical names, which can vary based on nomenclature systems and synonyms, a CAS number is a universal and consistent reference. For example, the CAS number 21934-68-9 corresponds to the chemical compound 6'-(Diethylamino)-1',3'-dimethylfluoran. This consistency is vital for avoiding confusion, especially when dealing with international trade and research collaboration.
Why CAS Numbers Matter for Procurement
For procurement managers, R&D scientists, and product formulators, using CAS numbers is a cornerstone of efficient chemical sourcing. When you need to buy 6'-(Diethylamino)-1',3'-dimethylfluoran, specifying its CAS number, 21934-68-9, ensures that you are searching for and requesting information about the correct substance. This precision is critical when communicating with:
Leveraging CAS Numbers for Global Sourcing
When sourcing chemicals like 6'-(Diethylamino)-1',3'-dimethylfluoran from global markets, particularly from suppliers in China, the CAS number is your primary tool for verification. It allows you to compare product offerings across different companies and confirm that you are getting the desired purity, such as 98% minimum for 6'-(Diethylamino)-1',3'-dimethylfluoran. Understanding the price of 6'-(Diethylamino)-1',3'-dimethylfluoran by referencing its CAS number ensures you are comparing like with like.
In essence, the CAS number is the universal language of chemical identification. By consistently using CAS numbers when inquiring about products, requesting quotes, and placing orders, businesses can significantly enhance accuracy, efficiency, and safety in their chemical procurement processes, ensuring they connect with the right manufacturer for their specific needs.
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A: We don't have Minimum Order Quantity, exact quantity should be provided before quotation for us to calculate the exact cost.
A: We don't provide free samples due to lots of request and expensive international courier's cost, we can deduct the sample charge after commercial order placed.
A: Our payment terms: Small or sample order: T/T IN ADVANCE. Commercial order: First order should be by T/T IN ADVANCE or L/C at sight, and following orders T/T 30~90days is acceptable subject to approval of credit application.
