A 1994 MSDS data sheet can be found in the Purdue archives:

http://www2.itap.purdue.edu/MSDS/index.cfm?letter=M

specifically,

http://www2.itap.purdue.edu/MSDS/docs/4402.pdf

From the Sheet:

Hazardous Ingredients
Calcinated Alumina
Hydrocarbon Mixture
Triethanolamine

I've used it (not on museum pieces) and it smells strongly of ammonia
and petrochemicals. I recall it worked well, which suggests that it
may be too strong for delicate pieces. I'd never use it on silver,
that's for sure.

-- 
Margaret
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