This section identifies the ingredient(s) contained in the product indicated on the SDS, including impurities and stabilizing additives. This section includes information on substances, mixtures, and all chemicals where a trade secret is claimed. The required information consists of:

Substances

• Chemical name
• Common name and synonyms
• Chemical Abstracts Service (CAS) number and other unique identifiers
• Impurities and stabilizing additives, which are themselves classified and which contribute to the classification of the chemical

Mixtures

• Same information required for substances
• The chemical name and concentration (i.e., exact percentage) of all ingredients which are classified as health hazards and are:
• Present above their cut-off/concentration limits
• Present a health risk below the cut-off/concentration limits
• The concentration (exact percentages) of each ingredient must be specified except concentration ranges may be used in the following situations:
• A trade secret claim is made
• There is batch-to-batch variation
• The SDS is used for a group of substantially similar mixtures

Chemicals where a trade secret is claimed

• A statement that the specific chemical identity and/or exact percentage (concentration) of composition has been withheld as a trade secret is required