Question

what section of an msds provides the phone number(s) for contacting the manufacturer of a chemical product?
section 6
section 2
section 1
section 5

Explanation:

In a Material - Safety Data Sheet (MSDS), the section that typically provides contact information for the manufacturer, including phone numbers, is Section 1. This section contains general identification information about the chemical product and the company that makes it.

Answer:

Section 1