请输入您要查询的英文单词:

 

单词 uroporphyrin
释义

uroporphyrinn.

/jʊərəʊˈpɔːfɪrɪn/
Etymology: < German urinporphyrin (H. Fischer 1915, in Zeitschr. f. Physiol. Chem. XCV. 34): see uro- comb. form1 and porphyrin n.
Biochemistry.
Any of a group of porphyrins, occurring esp. in the urine during certain types of porphyria, in which each of the pyrrole rings has one acetate and one propionate side chain.
ΘΚΠ
the world > matter > chemistry > organic chemistry > substances from animals or humans > [noun] > substances in urine > miscellaneous others
melanurin1844
kyestein1846
indican1859
heteroxanthine1886
homogentisic acid1891
urobilinogen1893
uroporphyrin1924
uroporphyrinogen1924
pyridoxic acid1944
1915 Chem. Abstr. 9 2884 Methyl ester..prepd. by the action of MeOH-HCl upon urinoporphyrin.]
1924 Chem. Abstr. 18 2720 For uroporphyrin and coproporphyrin..the spectra are now shown to be quite distinct.
1939 Chem. Abstr. 33 8777/1 In acute porphyria the urine contains a colorless substance (porphobilinogen)..which is a pyrrole deriv. and is converted to uroporphyrin on standing.
1955 Science 17 June 878/2 Uroporphyrins and very small amounts of coproporphyrins have been recovered after incubation of uroporphyrinogen I or III..with Chlorella preparations.
1958 New Biol. 25 75 The African plantain-eaters [sc. a family of birds]..are unique in possessing two uroporphyrin pigments, green turacoverdin and the turacin.
1978 A. R. Battersby in Porter & Fitzsimons Further Perspectives Org. Chem. (CIBA Symp. No. 53) 37 M. Thompson mixed the protiomethyl ester of uroporphyrin-II with the corresponding deuteriomethyl ester.
This entry has not yet been fully updated (first published 1986; most recently modified version published online June 2018).
<
n.1924
随便看

 

英语词典包含1132095条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。

 

Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间:2024/9/21 12:33:19