CAS SciFinder-n
Latest screenshot: 2023-01-18
Access to search interface:
paywalled
Last major interface update:
2021-01-05
Owner of search system:
Chemical Abstracts Service (CAS)
Location of system headquarters:
Columbus, US
Year of launch:
1995
Type:
Digital library
URL:
N/A
Help URL:
Twitter:
Description of search system (by system owner)
Details from thousands of global scientific references are added to the CAS Content Collection every day creating a comprehensive resource to access and keep up to date on the world’s published scientific literature across disciplines including biomedical sciences, chemistry, engineering, materials science, agricultural science, and many more.
Total coverage:
81.05M
Year-over-year growth (2019-2020):
10.95%
Subject coverage:
Multidisciplinary
Retrospective coverage:
1799–2021
Record types:
14
Open Access records:
N/A
Search functionality and interface
Systematic keyword searching:
limited
Backward citation searching:
sufficient
Forward citation searching:
extensive
Query builder:
Search history:
Match preview:
Sorting options:
4
Query
Latency with short query:
6.64 seconds
Latency with long query:
4.22 seconds
Controlled vocabulary:
Field codes:
13
Full text search:
Search string length (narrow):
10 terms max.
Search string length (wide):
10 terms max.
Language support: Chinese:
Language support: Cyrillic:
Truncation:
Wildcards:
Keyword position irrelevant:
Longer strings, fewer hits:
Automatic query expansion (stemming):
Verbatim queries:
Reproducible queries (time):
Reproducible queries (locations):
Operators
Search operators:
3
Boolean 'OR':
Boolean 'AND':
Boolean 'NOT':
Proximity operator:
Boolean works exact:
Nested search (parentheses):
Citation search / filtering
Record type filters:
14
Results filters:
10
Suggested related records:
Supported by bibliometric tools:
N/A
Backward citation information:
Backward citation score:
67.14%
Forward citation information:
Forward citation score:
45.41%
Retrieval
Number of accessible records:
Full
Bulk select records:
Bulk export records:
500
Export formats:
6
API:
upon request
Bulk select records' backward citations:
Bulk export backward citations:
500
Bulk select records' forward citations:
Bulk export forward citations:
500
