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537306

Sigma-Aldrich

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
MDL number:
MFCD01862150
UNSPSC Code:
12352005
PubChem Substance ID:
24878210
NACRES:
NA.22

Quality Level

100

Assay

98%

optical activity

[α]20/D −33°, c = 1 in NaHCO3

mp

255 °C (dec.) (lit.)

functional group

carboxylic acid

SMILES string

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

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

InChI key

UFIVEPVSAGBUSI-UWTATZPHSA-N

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315,H319,H335

Hazard Classifications

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

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

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)
Michelle L Zaharik et al.
Microbiology (Reading, England), 153(Pt 8), 2472-2482 (2007-07-31)
Mutants capable of utilizing the pyrimidine biosynthetic intermediates carbamoylaspartate and dihydroorotate for growth were derived from pyrimidine auxotrophs of Salmonella enterica serovar Typhimurium LT2. The gain-of-function phenotypes both resulted from mutations in a single gene, yhiT, the third gene of
[Development of anti-trypanosome drugs targeting nucleotides biosynthesis and red-ox regulatory pathway].
Kiyoshi Kita et al.
Tanpakushitsu kakusan koso. Protein, nucleic acid, enzyme, 54(12 Suppl), 1676-1683 (2009-09-01)
Rebecca L Fagan et al.
Biochemistry, 45(50), 14926-14932 (2006-12-13)
Dihydroorotate dehydrogenases (DHODs) oxidize dihydroorotate (DHO) to orotate using the FMN prosthetic group to abstract a hydride equivalent from C6 and a protein residue (Ser for Class 2 DHODs) to deprotonate C5. The fundamental question of whether the scission of
Claudia A McDonald et al.
Biochemistry, 50(14), 2714-2716 (2011-03-16)
Adding the two residues comprising the conserved proton-transfer network of Class 2 dihydroorotate dehydrogenase (DHOD) to the Cys130Ser Class 1A DHOD did not restore the function of the active site base or rapid flavin reduction. Studies of triple, double, and
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