{"title": "The Sigma-Aldrich library of regulatory and safety data", "subjects": ["Safety measures", "Hazardous substances", "Handbooks, manuals"], "key": "/works/OL18842142W", "type": {"key": "/type/work"}, "covers": [13483838], "latest_revision": 2, "revision": 2, "created": {"type": "/type/datetime", "value": "2019-02-17T11:10:37.763256"}, "last_modified": {"type": "/type/datetime", "value": "2023-03-16T03:07:02.831687"}}