CAS Registry Number (P231)
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identifier for a chemical substance or compound per Chemical Abstract Service's Registry database
- CAS Number
- CAS RN
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | CAS Registry Number |
identifier for a chemical substance or compound per Chemical Abstract Service's Registry database |
|
Data type
External identifier
Statements
50,000,000
7 September 2009
100,000,000
2015
4,787,991
31 December 1979
25,605
15 January 1965
2,950,000
November 1975
222,000
1 January 1966
89,000,000
1 January 2007
10,000,000
1990
47,000,000
2002
60,000,000
23 May 2011
199,000,000
3 September 2022
182,000,000
30 April 2021
5,000,000
1982
1 reference
about 5 million substances
11,000,000
30 June 1992
1 reference
211,934
31 December 1965
525,697
31 December 1966
796,479
31 December 1967
1,026,800
31 December 1968
1,313,848
31 December 1969
1,601,933
31 December 1970
1,953,447
31 December 1971
2,231,010
31 December 1972
2,668,212
31 December 1973
2,988,020
31 December 1974
3,360,512
31 December 1975
3,708,027
31 December 1976
4,077,703
31 December 1977
4,441,929
31 December 1978
5,141,872
31 December 1980
5,566,102
31 December 1981
5,927,808
31 December 1982
6,346,713
31 December 1983
6,910,103
31 December 1984
7,454,721
31 December 1985
8,083,687
31 December 1986
8,694,167
31 December 1987
9,296,632
31 December 1988
9,912,619
31 December 1989
11,260,213
31 December 1991
10,575,961
31 December 1990
11,950,526
31 December 1992
see [[en:w:CAS registry number]] for detailed method of numbering (English)
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https://chem.nlm.nih.gov/chemidplus/rn/$1
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https://commonchemistry.cas.org/detail?cas_rn=$1
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^https?:\/\/(?:www\.)?commonchemistry\.org\/ChemicalDetail\.aspx\?ref=([1-9]\d{1,6}-\d{2}-\d)
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^https?:\/\/chem\.nlm\.nih\.gov\/chemidplus\/rn\/([1-9]\d{1,6}-\d{2}-\d)
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^https?:\/\/(?:www\.)?commonchemistry\.cas\.org\/detail\?cas_rn=([1-9]\d{1,6}-\d{2}-\d)
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http://www.chemnet.com/cas/supplier.cgi?exact=dict&terms=$1
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https://webbook.nist.gov/cgi/cbook.cgi?ID=C$1
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https://webbook.nist.gov/cgi/cbook.cgi?ID=$1
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https://commonchemistry.cas.org/results?q=$1
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[1-9]\d{1,6}-\d{2}-\d
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Constraints
[1-9]\d{1,6}-\d{2}-\d
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