Cas Number Lookup
CAS Number Search - Chemsrc
Chemsrc provides free CAS Number Search engine to fast access over millions chemical structures, CAS number, MSDS, properties and associated information.
https://www.chemsrc.com/en/
CAS Number Search - NIST
Search for Species Data by CAS Registry Number. Please follow the steps below to conduct your search: Enter a registry number (e.g., 74-82-8): Select the desired units for thermodynamic data: SI calorie-based. Select the desired type (s) of data: Thermodynamic Data.
https://webbook.nist.gov/chemistry/cas-ser/
CAS Number Index | Chemsrc
a cas registry number,also referred to as casrn or cas number, is a unique numerical identifier assigned by the chemical abstracts service (cas) to every chemical substance described in the open scientific literature (currently including all substances described from 1957 through the present, plus some substances from the early or mid 1900s), …
https://www.chemsrc.com/en/casindex/
CAS REGISTRY | CAS
Authoritative source for accurate chemical names, structures, and CAS Registry Numbers ®. 198 million organic and inorganic substances, including alloys, coordination compounds, minerals, mixtures, polymers, and salts disclosed in publications since the early 1800s. ~70 million protein and nucleic acid sequences
https://www.cas.org/cas-data/cas-registry
CAS Number Index | NIOSH | CDC
CAS Number Index; CAS Number AGENT NAME/Synonyms UN Number; 51-75-2: NITROGEN MUSTARD HN-2 Caryolysin Caryolysine Chloramine Chlorethazine Chlormethine bis(2-Chloroethyl)methylamine
https://www.cdc.gov/niosh/ershdb/index_cas.html
CAS Common Chemistry
Access the CAS Common Chemistry chemical database via API (application programming interface) to support workflow integration, chemical research and cheminformatics. Full access to the CAS content collection is available through custom data and analytics solutions or in CAS products such as SciFinder n and STNext ®.
https://commonchemistry.cas.org/
CAS Number Listing - All CAS Numbers - NMAM 4th Edition | NIOSH | CDC
VANADIUM OXIDES 7504. 72162-30-2. 5035. pdf icon. SUPER ABSORBENT POLYMERS 5035. 77536-66-4. 7400. pdf icon. ASBESTOS and OTHER FIBERS by PCM 7400 Now available in NMAM 5th edition.
https://www.cdc.gov/niosh/docs/2003-154/method-casall.html
CDC - NIOSH Pocket Guide to Chemical Hazards - Index of CAS Numbers
Search NIOSH. NIOSH All CDC ... LinkedIn; Syndicate; Index of Chemical Abstracts Service Registry Numbers (CAS No.) Related Pages. CAS No. CHEMICAL NAME; 100-00-5: p-Nitrochlorobenzene: 100-01-6: p-Nitroaniline: 10022-31-8: Barium nitrate (as Ba) 10024-97-2: Nitrous oxide: 100-25-4: p-Dinitrobenzene: 10025-67-9: Sulfur monochloride:
https://www.cdc.gov/niosh/npg/npgdcas.html
PubChem
PubChem is the world's largest collection of freely accessible chemical information. Search chemicals by name, molecular formula, structure, and other identifiers. Find chemical and physical properties, biological activities, safety and toxicity information, patents, literature citations and more. We are constantly adding new data and working ...
https://pubchem.ncbi.nlm.nih.gov/
System of Registries | US EPA
Enter a name or number Enter chemical, substance, or biological name or ID (CAS #, EPA ID, TSN, or internal tracking number) Match type. Options. Clear options Find chemical and substance resources ... Search. Substance Search; Advanced Search; PMN & Accession Numbers Search; SRS Web Services / APIs.
https://ofmpub.epa.gov/sor_internet/registry/substreg/LandingPage.do
Cas no for chemicals, Cas number search database by name, online free ...
For example, use the following search terms to get information about tartaric acid: 1 Enter the product English name or alias to search: tartaric acid. 2 Enter the CAS registration number to search：133-37-9. 3 Enter the product Chinese name or alias to search: 酒石酸
https://www.pharmasources.com/cas