Normal view
MARC view
- Azo Compounds
Entry Topical Term
001 - CONTROL NUMBER
- control field: 78877
003 - CONTROL NUMBER IDENTIFIER
- control field: DNLM
005 - DATE AND TIME OF LATEST TRANSACTION
- control field: 20210313223336.0
008 - FIXED-LENGTH DATA ELEMENTS
- fixed length control field: 990101 n ancnnbabn || ana
040 ## - CATALOGING SOURCE
- Original cataloging agency: DNLM
- Transcribing agency: DNLM
060 #0 - NATIONAL LIBRARY OF MEDICINE CALL NUMBER
- Classification number: QV 240
072 ## - SUBJECT CATEGORY CODE
- Subject category code: D2.
- Subject category code subdivision: 172
150 ## - HEADING--TOPICAL TERM
- Topical term or geographic name entry element: Azo Compounds
450 ## - SEE FROM TRACING--TOPICAL TERM
- Control subfield: nnna
- Topical term or geographic name entry element: Azo Dyes
450 ## - SEE FROM TRACING--TOPICAL TERM
- Topical term or geographic name entry element: Azo Dye
450 ## - SEE FROM TRACING--TOPICAL TERM
- Control subfield: nnna
- Topical term or geographic name entry element: Compounds, Azo
450 ## - SEE FROM TRACING--TOPICAL TERM
- Control subfield: nnna
- Topical term or geographic name entry element: Dye, Azo
450 ## - SEE FROM TRACING--TOPICAL TERM
- Control subfield: nnna
- Topical term or geographic name entry element: Dyes, Azo
680 ## - PUBLIC GENERAL NOTE
- Explanatory text: Organic chemicals where aryl or alkyl groups are joined by two nitrogen atoms through a double bond (R-N=N-R'; R and R' may be either aryl or alkyl). They may be used as DYES.