Putrescine
Structural formula | ||||||||||||||||||||||
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General | ||||||||||||||||||||||
Surname | Putrescine | |||||||||||||||||||||
other names |
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Molecular formula | C 4 H 12 N 2 | |||||||||||||||||||||
Brief description |
colorless crystalline solid with an amine-like odor |
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properties | ||||||||||||||||||||||
Molar mass | 88.15 g mol −1 | |||||||||||||||||||||
Physical state |
firmly |
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density |
0.88 g cm −3 |
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Melting point |
25-27 ° C |
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boiling point |
158 ° C |
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solubility |
soluble in water (40 g l −1 at 20 ° C) |
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safety instructions | ||||||||||||||||||||||
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Toxicological data | ||||||||||||||||||||||
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . |
Putrescine (from Latin : putrere "rot, fester") is the common name for butane-1,4-diamine , a diamine of n- butane .
Occurrence
Putrescine is a case of meat rotting, but also in living organisms from ornithine by decarboxylation arising biogenic amine . The enzyme ornithine decarboxylase is responsible for this decomposition . Putrescine is found in fresh meat and its amount increases with the length of storage. In food chemistry , the putrescine content is an indication of the freshness of meat.
As a putrefaction base, it is part of the ptomaine (so-called corpse poison) and thus also contributes to the odor of decay .
use
1,4-Diaminobutane is a starting component for macromolecular substances as well as for the production of pharmaceuticals and pesticides.
Individual evidence
- ↑ a b c d e f g h Entry on tetramethylenediamine in the GESTIS substance database of the IFA , accessed on April 22, 2020(JavaScript required) .
- ↑ Data sheet 1,4-diaminobutane from Sigma-Aldrich , accessed on January 19, 2020 ( PDF ).
- ↑ Data sheet 1,4-diaminobutane (PDF) from Merck , accessed on January 19, 2020.
- ↑ Wolfgang Legrum: Fragrances, between stench and fragrance , Vieweg + Teubner Verlag (2011), ISBN 978-3-8348-1245-2 , p. 65.