You are not likely to find a rectangular dish with a glass lid. Try Corningware. Amazon.com has a large selection of cooking pans.
Pyrex is the trade name of a Corning low thermal expansion glass. All Pyrex is glass, not all glass is Pyrex.
I would have to say Pyrex
Another name for glass is silicon dioxide. Pyrex, a tempered, stronger form of glass used for baking ware and chemistry lab glassware is borosilicate.
It's a special kind of glass that resists the breakage that would occur to regular glass if you tried baking in it or transferring it between extremes of hot and cold.
Pyrex is borosilicate glass and like all glass does not absorb any chemicals.
pyrex: a glass pipe fog: your drug of choice
Pyrex glass is designed to withstand sudden & drastic TEMPERATURE changes. Most glass will shatter with sudden temperature changes. Pyrex is not bulletproof. Most transparent bulletproof material (glass) is composed of several layers of plastic & glass sandwiched together. The plastic holds the glass together, while the glass absorbs a bullet's impact.
It is a glass formulated to resist thermal shock.
Only if it is Pyrex glass.
Pyrex is just a brand name of toughened, heat-resistant glass.
Pyrex is perfect for microwaving because it is made of glass. Glass is safe to go in the microwave and it will not contaminate your food.
Nooooooooooo!!!! Pyrex is not ever safe to freeze. Your answer no doubt comes as a surprise to all the cooks who have been baking casseroles in Pyrex, cooling them and sticking them in the freezer. After that they can go directly to the oven or be defrosted first. Ask the Pyrex people!