MSDS in general are crap. They require wearing full PPE to work with table salt (not kidding, see:
https://www.intrepidpotash.com/wp-content/uploads/2017/02/Mo... ). Manufacturers use them to cover their asses.
Glyphosate is a true victim of post-truth society. It has not been shown to cause any harm in multiple well-controlled experiments, yet a jury in San Francisco (no brains allowed there) found Monsanto liable for a cancer that they attributed to glyphosate use. Because Monsanto is bad and does GM food which is bad for you because glyphosate causes cancer.
And now "everybody knows" that glyphosate is somehow bad.
The toxicology section of the MSDS with actual information is great, though:
SECTION 11: TOXICOLOGICAL INFORMATION
Eye Causes moderate eye irritation.
Skin May cause slight irritation.
Ingestion Not expected to produce significant adverse effects when
recommended use instructions are followed.
Inhalation Not expected to produce significant adverse effects when
recommended use instructions are followed.
Information on toxicological effects
Acute oral toxicity LD50 (Rat) > 5,000 mg/kg
Acute dermal toxicity LD50 (Rat) > 5,000 mg/kg No deaths
Skin corrosion/irritation Slight irritant effect - does not require labelling.
Basically, they have not managed to cause dermal toxicity even after slathering rats in glyphosate. Yet you must burn clothes if glyphosate gets on them.
Here's an overview from NIH: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5515989/