ChemicalBook >> CAS DataBase List >>ISOBARBITURIC ACID
ISOBARBITURIC ACID
- CAS No.
- 496-76-4
- Chemical Name:
- ISOBARBITURIC ACID
- Synonyms
- dihydropyrimidine-2,4,5(3H)-trione;NSC 95958;5-hydroxyisouracil;IsobarbituricAcid>2,4,6-ThihydroxypyriMidine;Fluorouracil EP Impurity B;1,3-diazinane-2,4,5-trione;Dihydropyrimidine-2,4,5(3H);Fluorouracil impurity B CRS;2,4,5-Trihydroxypyrimidine,97%
- CBNumber:
- CB6497695
- Molecular Formula:
- C4H4N2O3
- Molecular Weight:
- 128.09
- MDL Number:
- MFCD00082987
- MOL File:
- 496-76-4.mol
- MSDS File:
- SDS
Last updated:2026-05-28 05:25:15
| Product description | Number | Pack Size | Price |
| Fluorouracil Related Compound B pharmaceutical secondary standard, certified reference material | PHR2866 | 50MG | $675 |
| Isobarbituric acid analytical standard | I0627 | 1g | $162 |
| Fluorouracil Related Compound B United States Pharmacopeia (USP) Reference Standard | 1279021 | 25mg | $1290 |
| Isobarbituric Acid | TRC-I780030-500MG | 500mg | $392 |
| Isobarbituric Acid | TRC-I780030-100MG | 100mg | $142 |
| More product size | |||
| Melting point | >300 °C (dec.)(lit.) |
|---|---|
| Density | 1.455±0.06 g/cm3(Predicted) |
| storage temp. | 2-8°C |
| solubility | Soluble in DMSO (Sparingly), Methanol (Sparingly). |
| pka | 8.25±0.20(Predicted) |
| form | crystalline |
| color | light yellow |
| BRN | 127205 |
| Major Application |
forensics and toxicology pharmaceutical (small molecule) veterinary |
| InChI | 1S/C4H4N2O3/c7-2-1-5-4(9)6-3(2)8/h1H2,(H2,5,6,8,9) |
| InChIKey | FQXOOGHQVPKHPG-UHFFFAOYSA-N |
| SMILES | O=C1CNC(=O)NC1=O |
| FDA UNII | 438WJI1S49 |
| UNSPSC Code | 41116107 |
| NACRES | NA.24 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H315-H319-H335 | |||||||||
| Precautionary statements | P305+P351+P338 | |||||||||
| PPE | dust mask type N95 (US), Eyeshields, Gloves | |||||||||
| Hazard Codes | Xi | |||||||||
| Risk Statements | 36/37/38 | |||||||||
| Safety Statements | 26-36 | |||||||||
| WGK Germany | 3 | |||||||||
| HS Code | 2933599550 | |||||||||
| Storage Class | 11 - Combustible Solids | |||||||||
| NFPA 704 |
|
ISOBARBITURIC ACID price More Price(24)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | PHR2866 | Fluorouracil Related Compound B pharmaceutical secondary standard, certified reference material | 496-76-4 | 50MG | $675 | 2026-04-30 | Buy |
| Sigma-Aldrich | I0627 | Isobarbituric acid analytical standard | 496-76-4 | 1g | $162 | 2026-04-30 | Buy |
| Sigma-Aldrich | 1279021 | Fluorouracil Related Compound B United States Pharmacopeia (USP) Reference Standard | 496-76-4 | 25mg | $1290 | 2026-04-30 | Buy |
| TRC | TRC-I780030-500MG | Isobarbituric Acid | 496-76-4 | 500mg | $392 | 2026-06-03 | Buy |
| TRC | TRC-I780030-100MG | Isobarbituric Acid | 496-76-4 | 100mg | $142 | 2026-06-03 | Buy |
ISOBARBITURIC ACID Chemical Properties,Uses,Production
Chemical Properties
light yellow to beige granular powder
Uses
2,4,5-Trihydroxypyrimidine studies show that it can form stable base pairs with all four bases in a DNA duplex. It has been used as oxidative DNA damage biomarker in tissue engineered skin. It acts as an antagonist of uracil in the growth of Lactobacillus casei.
Uses
A 5-hydroxy derivative of the nucleobase Uracil (U801000) and an isomer of Barbituric Acid (B118650). Studies show that it can form stable base pairs with all four bases in a DNA duplex. It has been u sed as oxidative DNA damage biomarker in tissue engineered skin
ISOBARBITURIC ACID Preparation Products And Raw materials
Raw materials
Preparation Products
Global( 103)Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Shaanxi Dideu Medichem Co. Ltd | +86-29-81139210 +86-18192627656 | 1059@dideu.com | China | 3587 | 58 |
| Capot Chemical Co.,Ltd. | +86-（0）57185586718 +86-13336195806 | sales@capot.com | China | 29640 | 60 |
| Accela ChemBio Inc. | +1-858-6993322 | info@accelachem.com | United States | 21193 | 58 |
| Standardpharm Co. Ltd. | 86-714-3992388 | overseasales1@yongstandards.com | United States | 14332 | 58 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | factory@coreychem.com | China | 29792 | 58 |
| Fuxin Pharmaceutical | +86-021-021-50872116 +8613122107989 | contact@fuxinpharm.com | China | 10000 | 58 |
| Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418671 +8618949823763 | sales@tnjchem.com | China | 34563 | 58 |
| sgtlifesciences pvt ltd | +8617013299288 | dj@sgtlifesciences.com | China | 12373 | 58 |
| Aladdin Scientific | tp@aladdinsci.com | United States | 57505 | 58 | |
| XIAMEN AMITY INDUSTRY AND TRADE CO., LTD. | +8618950047208 | ellena@amitychem.com | China | 43414 | 58 |
View Lastest Price from ISOBARBITURIC ACID manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2025-12-12 | ISOBARBITURIC ACID
496-76-4
|
$20.00-30.00 | 1KG | 99% | 3000KG | Shaanxi Dideu Medichem Co. Ltd | |
 |
2019-12-25 | ISOBARBITURIC ACID
496-76-4
|
$1.00 | 1KG | 99% | 200kg | Career Henan Chemical Co |
-
- ISOBARBITURIC ACID
496-76-4
- $20.00-30.00
- 99%
- Shaanxi Dideu Medichem Co. Ltd
-
- ISOBARBITURIC ACID
496-76-4
- $1.00
- 99%
- Career Henan Chemical Co
496-76-4(ISOBARBITURIC ACID)Related Search:
TRIFLUOROACETIC ACID REAGENTPLUS 99%
2,4,5(3H)-Pyrimidinetrione, dihydro- (9CI)
2,4,5-Trihydroxypyrimidine, 5-Hydroxyuracil
1,6-Dihydro-2,4,5(3H)-pyrimidinetrione
2-Hydroxy-1,6-dihydropyrimidine-4,5-dione
2-Hydroxypyrimidine-4,5(3H,6H)-dione
Pyrimidine-2,4,5(1H,3H,6H)-trione
2,4,5-Trihydroxypyrimidine,98%
2,4,5-Trihydroxypyrimidine,97%
5-hydroxyisouracil
Dihydro-2,4,5(3H)-pyriMidinetrione
NSC 95958
2,4,6-ThihydroxypyriMidine
Fluorouracil Related CoMpound B
Dihydropyrimidine-2,4,5(3H)
Fluorouracil Impurity 2（Fluorouracil EP Impurity B）
Fluorouracil EP Impurity B
1,3-diazinane-2,4,5-trione
Fluorouracil Related Compound B (Dihydropyrimidine-2,4,5(3H)-trione)
IsobarbituricAcid>
Fluorouracil impurity B CRS
2,4,5(3H)-Pyrimidinetrione, dihydro-
Fluorouracil EP Impurity B (Isobarbituric acid)
5-hydroxy UracilQ: What is
5-hydroxy Uracil Q: What is the CAS Number of
5-hydroxy Uracil Q: What is the storage condition of
5-hydroxy Uracil Q: What are the applications of
5-hydroxy Uracil
Fluorouracil Related Compound B (Dihydropyrimidine-2,4,5(3H)-trione) (1279021)
dihydropyrimidine-2,4,5(3H)-trione
Fluorouracil USP Related Compound B
Dihydropyrimidine-2,4,5(3H)-trione (Isobarbituric Acid
496-76-4
C4H4N2O3
Nucleotides
Aromatic
Bases & Related Reagents
Heterocycles
APIs & Intermediate
PYRIMIDINE
