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Regular Expression Details

Title Test Find CAS Registry Number
Expression
^[1-9][0-9]{1,6}\-[0-9]{2}\-[0-9]
Description
Other examples of this show there being upto 6 digits at the start however according to the official website, it should be 7 https://www.cas.org/content/chemical-substances/faqs
Matches
506-64-9 | 1234567-21-1
Non-Matches
506-64-19 | 12345678-21-1
Author Rating: Not yet rated. PJWhitfield
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