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What to include for IES

Completed IES Order Form

• Rush (if applicable)
• CASRN (if desired; CA Index Name is standard output)
• Signature and Date

For a Class 1 Substance - See PMN Page 4

• Molecular Formula
• Descriptive Chemical Name (if possible)
• Structure

For a Class 2 Nonpolymeric Substance - See PMN Page 4

• CASRNs for starting materials
• Process Information
• Composition
• Representative Structure (of final product)

For a Class 2 Polymeric Substance - See PMN Page 5

• Descriptive chemical name, CASRN and percentage of each starting monomer
• Representative Structure with monomers linked together
• Free Radical Initiator, CASRN and percentage (if needed)
• All monomers and initiators indicated applying the 2% rule

Class 1 Substances:

Chemical substances which are single compounds composed of molecules with particular atoms arranged in a definite, known structure.

Class 2 Substances:

Chemical substances with a variable composition or composed of a complex combination of different molecules. Class 2 substances can be further subdivided into 3 subgroups. The first subgroup includes substances which can be represented by definite Hill ordered molecular formulae but have variable structural diagrams. The second subgroup includes substances which can be represented by definite molecular formulae but have unknown structural diagrams. The third subgroup includes representations of substances that have no definite molecular formula representation and either partial structure diagrams or no structural diagrams - often referred to as UVCBs (Unknown or Variable Composition, Complex Reaction Products and Biological Materials).