CAS 7440-24-6 — 0 EU Cosmetic Records

Chemical identity and properties

PubChem 2D chemical structure for CAS 7440-24-6

CAS 7440-24-6PubChem CID 5359327

Strontium

Strontium is a naturally occurring element found in rocks, soil, dust, coal, and oil. Naturally occurring strontium is not radioactive and is either referred to as stable strontium or strontium. Strontium in the environment exists in four stable isotopes,84Sr (read as strontium eighty-four),86Sr,87Sr,88Sr. Strontium compounds are used in making ceramics and glass products, pyrotechnics, paint pigments, fluorescent lights, and medicines. Strontium can also exist as several radioactive isotopes; the most common is90Sr.90Sr is formed in nuclear reactors or during the explosion of nuclear weapons. Radioactive strontium generates beta particles as it decays. One of the radioactive properties of strontium is half-life, or the time it takes for half of the isotope to give off its radiation and change into another substance. The half-life of90Sr is 29 years. — Agency for Toxic Substances and Disease Registry (ATSDR)

IUPAC name: strontium

Molecular formula: Sr
Molecular weight: 87.62 g/mol
Exact mass: 87.90561225 Da
Topological polar surface area: 0.0 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 0
Covalent units: 1
Defined stereocentres: 0

Also known as

Strontium, elementalYZS2RPE8LESRCHEBI:33324Strontium MetallicumRefChem:56052231-133-4strontium atom

16 more reported names

Atomic StrontiumStrontium elementestroncioStrontium, distilled dendritic piecesHSDB 2545UNII-YZS2RPE8LEEINECS 231-133-4Strontium Standard: Sr @ 1000 microg/mL in 5% HNO3Strontium Standard: Sr @ 10000 microg/mL in 5% HNO3Strontium AA Standard: Sr @ 1000 microg/mL in 5% HNO3Strontium Standard: Sr @ 1000 microg/g in Hydrocarbon OilStrontium Standard: Sr @ 5000 microg/g in Hydrocarbon OilIon Chromatography Standard: Strontium @ 100 microg/mL in H2Ostrontium metalStrontium piecesSulfur-Free Cobalt Concentrate: Co @ approx. 3 wt% in Hydrocarbons

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External database identifiers

ChEBI:CHEBI:33324
ChEMBL:CHEMBL1201359
EPA DTXSID:DTXSID0050219
EPA DTXSID:DTXSID301357661
EPA DTXSID:DTXSID3024312
EPA DTXSID:DTXSID501357631
EPA DTXSID:DTXSID501357679
EPA DTXSID:DTXSID50161175
EPA DTXSID:DTXSID5050210
EPA DTXSID:DTXSID601357660
EPA DTXSID:DTXSID701357663
EPA DTXSID:DTXSID701357720
EPA DTXSID:DTXSID801357616
EPA DTXSID:DTXSID901019019
EPA DTXSID:DTXSID90161174
PubMed:21146870
PubMed:19129982
PubMed:17916923
PubMed:16886220
PubMed:16815919
PubMed:16533908
PubMed:15488650
PubMed:15068510
PubMed:11988098

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Records for CAS 7440-24-6

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