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Merck

537306

D-Hydroorotic acid

98%

Synonym(s):

R-2,6-Dioxohexahydro-4-pyrimidinecarboxylic acid, Dihydro-D-orotic acid

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About This Item

Empirical Formula (Hill Notation):
C5H6N2O4
CAS Number:
5988-53-4
Molecular Weight:
158.11
NACRES:
NA.22
PubChem Substance ID:
24878210
UNSPSC Code:
12352005
MDL number:
MFCD01862150
Assay:
98%

Key Documents

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InChI

1S/C5H6N2O4/c8-3-1-2(4(9)10)6-5(11)7-3/h2H,1H2,(H,9,10)(H2,6,7,8,11)/t2-/m1/s1

SMILES string

OC(=O)[C@H]1CC(=O)NC(=O)N1

InChI key

UFIVEPVSAGBUSI-UWTATZPHSA-N

assay

98%

optical activity

[α]20/D −33°, c = 1 in NaHCO3

mp

255 °C (dec.) (lit.)

functional group

carboxylic acid

Quality Level

100

Related Categories

pictograms

Exclamation mark
GHS07

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
MKBW8256V
MKBV7585V
MKBW1662V
03221PI

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Mihwa Lee et al.
Journal of molecular biology, 348(3), 523-533 (2005-04-14)
Escherichia coli dihydroorotase has been crystallized in the presence of the product, L-dihydroorotate (L-DHO), and the structure refined at 1.9A resolution. The structure confirms that previously reported (PDB entry 1J79), crystallized in the presence of the substrate N-carbamyl-D,L-aspartate (D, L-CA-asp)
Rebecca L Fagan et al.
Biochemistry, 48(30), 7169-7178 (2009-06-18)
Dihydroorotate dehydrogenases (DHODs) catalyze the only redox step in de novo pyrimidine biosynthesis, the oxidation of dihydroorotate (DHO) to orotate (OA). During the reaction, the hydrogen at C6 of DHO is transferred to N5 of the isoalloxazine ring of an
Pengfei Zhang et al.
Biochemistry, 48(4), 766-778 (2009-01-09)
In prokaryotes, the first three enzymes in pyrimidine biosynthesis, carbamoyl phosphate synthetase (CPS), aspartate transcarbamoylase (ATC), and dihydroorotase (DHO), are commonly expressed separately and either function independently (Escherichia coli) or associate into multifunctional complexes (Aquifex aeolicus). In mammals the enzymes
Jonathan P Combe et al.
The Journal of biological chemistry, 281(26), 17977-17988 (2006-04-21)
Dihydroorotate dehydrogenase B (DHODB) catalyzes the oxidation of dihydroorotate (DHO) to orotate and is found in the pyrimidine biosynthetic pathway. The Lactococcus lactis enzyme is a dimer of heterodimers containing FMN, FAD, and a 2Fe-2S center. Lys-D48 is found in
Danny T Huang et al.
Biochemistry, 45(27), 8275-8283 (2006-07-06)
Dihydroorotase (DHOase, EC 3.5.2.3) from the extreme thermophile Bacillus caldolyticus has been subcloned, sequenced, expressed, and purified as a monomer. The catalytic properties of this thermophilic DHOase have been compared with another type I enzyme, the DHOase domain from hamster
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