What Is a CAS Number?

Here at ICC Compliance Center and depending on your application, we may ask you for a CAS number. When we create labels on demand for your exports, among other services, we will ask you to provide us with the chemical name and CAS number and then we are able to provide as few as 100 GHS compliant labels  and/or a compliant SDS.

Compliant GHS Chemical Label:

Compliant GHS chemical label

A CAS number or CAS Registry number is a unique identifier for every chemical substance dating back to 1957. The Chemical Abstracts Service (CAS) is the responsible entity that is responsible for assigning a unique number to every chemical described in scientific literature.

A CAS number itself has no meaning. Its primary use is to avoid confusion between chemicals with similar names, or individual chemicals that may have multiple names. It is also used to identify the chemical when a generic or trade name is used.

A CAS Registry Number is separated by hyphens into three parts, the first consisting of up to seven digits, the second consisting of two digits and the third consisting of a single digit.

In short, the CAS number can be particularly useful in database searches because it allows you to search a database and easily pull every record for that particular substance or chemical. For example, “Methanol” is known by multiple names such as methyl alcohol, methyl hydrate, hydroxymethane and Continue Reading…

Authoring a Material Safety Data Sheet [(M)SDS] For Paint Is Not As Easy As One Would Think

Take a company that manufactures artist’s paints. They could sell hundreds of colors and most are made with the same “base” ingredients. Start adding the colorant, dye or pigment, and all of a sudden you have the potential for hundreds of unique ingredients and the potential for some differences.

What many folks do not understand is that each colorant, dye or pigment may have different hazards. The classification could change from paint to paint. It is imperative that each colorant, dye or pigment is researched to see if it meets any of the hazard criteria. Products may look the same once they are sitting on a shelf, but can be dramatically different in chemical composition.  If something different occurs in the profile of hazards, then (M)SDS needs modified to be accordingly. We also strongly recommend a separate (M)SDS when the hazards are found to be different from the colors.

Add wanting to prepare an MSDS for Canada, the USA or Europe, and you have a variety of different disclosure criteria, cut-off values etc. Something that is regulated in one country may not be in another.

ICC takes pride in ensuring that SDSs we author meet the requirements of the WHMIS, OSHA or European regulations. Contact us for details on how we can help.

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