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Contents   Fixed field   0xx   1xx   2xx   3xx   4xx   5xx   6xx   7xx   8xx   9xx

030  CODEN Designation (R)

       

Input Standards

Required if applicable/Required if applicable
1st Indicator  Undefined
blank character Undefined
2nd Indicator  Undefined
blank character Undefined
Subfields (R=Repeatable  NR=Nonrepeatable) Input Standards 
‡a CODEN (NR) Required if applicable/Required if applicable
‡z Canceled/invalid CODEN (R) Required if applicable/Required if applicable




Definition

Contains the CODEN designation assigned to a periodical title by the Chemical Abstracts Service. Each CODEN consists of four mnemonic letters and a fifth letter, A, B, C, or D. The sixth character, a check character, is alphabetic or numeric.

Validation 

The sixth character of a CODEN is a calculated check character, either numeric, 2-9, or alphabetic, A-Z. It is used to identify and eliminate typographical errors.

When you validate a record containing field 030, the system checks the CODEN in subfield ‡a to verify that the content and length are correct and that the check character matches the calculated check character.

If there is an error in the CODEN (e.g., the CODEN is too long or too short, has an incorrect character in any position, or incorrect value in the check digit), the system displays an error message with the CODEN remaining in subfield ‡a. If you made a typographical error, correct the CODEN and validate the record again. If the error message appears again and you transcribed the CODEN exactly, the CODEN is in error. Put the CODEN in subfield ‡z.

1st Indicator

Undefined. The 1st indicator position is undefined and contains a blank ( blank character ).
 
blank character Undefined 

2nd Indicator

Undefined. The 2nd indicator position is undefined and contains a blank ( blank character ).
 
blank character Undefined 

Subfields

 
‡a CODEN   Enter the entire CODEN and the check character. Do not enter spaces or punctuation (e.g., hyphens) which may appear between the fourth and fifth characters.
030     AISJB6
030     CADIDW
‡z Canceled/invalid CODEN   Enter the number in the same form as a valid CODEN.

Printing

Field 030 does not print.

Last revised: February 12, 2014