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2-Thiouracil-5-carboxylic acid

CAS No.
23945-50-8
Chemical Name:
2-Thiouracil-5-carboxylic acid
Synonyms
5-CARBOXY-2-THIOURACIL;2-Thiouracil-5-carboxylic acid;5-carboxy-2-thiouracil free acid;5-CARBOXY-4-HYDROXY-2-THIOPYRIMIDINE;4-hydroxy-2-mercaptopyrimidine-5-carboxylic acid;2-THIOURACIL-5-CARBOXYLIC ACID ISO 9001:2015 REACH;1,2,3,4-tetrahydro-4-oxo-2-thioxo-5-pyrimidinecarboxylicaci;1,2,3,4-tetrahydro-4-oxo-2-thioxopyrimidine-5-carboxylic acid;4-Oxo-2-thioxo-1,2,3,4-tetrahydropyrimidine-5-carboxylic acid;1,2,3,4-Tetrahydro-4-oxo-2-thioxo-5-pyrimidinecarboxylic acid
CBNumber:
CB4349303
Molecular Formula:
C5H4N2O3S
Molecular Weight:
172.16
MDL Number:
MFCD00038020
MOL File:
23945-50-8.mol
MSDS File:
SDS
Last updated:2026-09-12 18:52:45

2-Thiouracil-5-carboxylic acid Properties

Melting point 246-247 °C (decomp)
Density 1.74±0.1 g/cm3(Predicted)
storage temp. Keep in dark place,Inert atmosphere,Room temperature
solubility 1 M NaOH: 50mg/mL, clear, colorless to faintly yellow
form powder
pka 4.84±0.20(Predicted)
color White to off-white
biological source synthetic (organic)
InChI 1S/C5H4N2O3S/c8-3-2(4(9)10)1-6-5(11)7-3/h1H,(H,9,10)(H2,6,7,8,11)
InChIKey XKHWTDCFQVKNHW-UHFFFAOYSA-N
SMILES OC(=O)c1cnc(S)nc1O
EPA Substance Registry System 5-Pyrimidinecarboxylic acid, 1,2,3,4-tetrahydro-4-oxo-2-thioxo- (23945-50-8)
UNSPSC Code 41106305
NACRES NA.51

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H302-H315-H319-H335
Precautionary statements  P261-P305+P351+P338
PPE Eyeshields, Gloves, type N95 (US)
WGK Germany  3
TSCA  TSCA listed
Storage Class 11 - Combustible Solids

2-Thiouracil-5-carboxylic acid price More Price(28)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich C9375 5-Carboxy-2-thiouracil 23945-50-8 5g $189 2026-04-30 Buy
ChemScene CS-0045608 5-Carboxy-2-thiouracil ≥98% 23945-50-8 250mg $6 2026-06-04 Buy
ChemScene CS-0045608 5-Carboxy-2-thiouracil ≥98% 23945-50-8 1g $17 2026-06-04 Buy
ChemScene CS-0045608 5-Carboxy-2-thiouracil ≥98% 23945-50-8 5g $67 2026-06-04 Buy
ChemScene CS-0045608 5-Carboxy-2-thiouracil ≥98% 23945-50-8 10g $134 2026-06-04 Buy
Product number Packaging Price Buy
C9375 5g $189 Buy
CS-0045608 250mg $6 Buy
CS-0045608 1g $17 Buy
CS-0045608 5g $67 Buy
CS-0045608 10g $134 Buy

2-Thiouracil-5-carboxylic acid Chemical Properties, Uses, Production

Uses

5-Carboxy-2-thiouracil is a possible anti-tumor agent when part of a metal complex.

2-Thiouracil-5-carboxylic acid Preparation Products And Raw materials

Raw materials

Preparation Products

2-Thiouracil-5-carboxylic acid Suppliers

Global Suppliers ( 63)
Supplier Tel Email Country ProdList Advantage
Tianjin heowns Biochemical Technology Co., Ltd. 400 638 7771 sales@heowns.com China 14412 57
Shanghai Aladdin Bio-Chem Technology Co.,LTD 400-6206333 13167063860 anhua.mao@aladdin-e.com China 29985 65
Bide Pharmatech Ltd. 400-164-7117 18317119277 product02@bidepharm.com China 40000 60
Hunan HuaTeng Pharmaceutical Co., Ltd., 400-8592883 15367835770 sales@huatengsci.com China 5869 58
Shanghai YuanYe Biotechnology Co., Ltd. 15026964105 2881489226@qq.com China 89667 60
Amadis Chemical Company Limited 571-89925085 sales@amadischem.com China 131885 58
Aikon International Limited 025-58859352 19370895928 sales01@aikonchem.com China 15078 58
Tianjin heowns Biochemical Technology Co., Ltd. 400-6387771-6039 18920764717 sales@heowns.com China 24636 60
Taizhou Ruishinuo Pharmaceutical Technology Co., Ltd. 0523-86848872 19952992164;18652727964; 725236090@qq.com China 98 58
Shanghai Jizhi Biochemical Technology Co. Ltd. 021-4009004166/18616739031 18616739031 3007523370@qq.com China 40000 58

View Latest Price from 2-Thiouracil-5-carboxylic acid manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
2-THIOURACIL-5-CARBOXYLIC ACID pictures 2025-06-25 2-THIOURACIL-5-CARBOXYLIC ACID
23945-50-8
$1.10 1g 99.0% min 100 tons min Shaanxi Dideu Medichem Co. Ltd
5-CARBOXY-2-THIOURACIL 5-CARBOXY-4-HYDROXY-2-THIOPYRIMIDINE 1,2,3,4-tetrahydro-4-oxo-2-thioxo-5-pyrimidinecarboxylicaci 5-Carboxy-2-thiouracil,2-Thiouracil-5-carboxylic acid, 5-Carboxy-4-hydroxy-2-thiopyrimidine 2-Thiouracil-5-carboxylic acid, 5-Carboxy-4-hydroxy-2-thiopyrimidine 1,2,3,4-Tetrahydro-4-oxo-2-thioxo-5-pyrimidinecarboxylic acid 4-Oxo-2-thioxo-1,2,3,4-tetrahydropyrimidine-5-carboxylic acid 4-hydroxy-2-mercaptopyrimidine-5-carboxylic acid 5-Pyrimidinecarboxylic acid, 1,2,3,4-tetrahydro-4-oxo-2-thioxo- 5-carboxy-2-thiouracil free acid 1,2,3,4-tetrahydro-4-oxo-2-thioxopyrimidine-5-carboxylic acid 2-THIOURACIL-5-CARBOXYLIC ACID ISO 9001:2015 REACH 2-Thiouracil-5-carboxylic acid 23945-50-8 C5H4N2O3S Biochemicals and Reagents BioChemical Nucleoside Analogs Nucleosides, Nucleotides, Oligonucleotides john's