6-methyl-2-oxoperhydropyrimidin-4-ylurea
- CAS No.
- 1129-42-6
- Chemical Name:
- 6-methyl-2-oxoperhydropyrimidin-4-ylurea
- Synonyms
- Crotonylidene diurea;6-methyl-2-oxoperhydropyrimidin-4-ylurea;1-(6-Methyl-2-oxohexahydropyriMidin-4-yl)urea;(hexahydro-6-methyl-2-oxo-4-pyrimidinyl)-Urea;(6-Methyl-2-oxo-hexahydro-pyrimidin-4-yl)-urea;Urea, (hexahydro-6-methyl-2-oxo-4-pyrimidinyl)-
- CBNumber:
- CB9928930
- Molecular Formula:
- C6H12N4O2
- Molecular Weight:
- 172.19
- MDL Number:
- MFCD00510597
- MOL File:
- 1129-42-6.mol
| Melting point | 250 °C (decomp) |
|---|---|
| Boiling point | 454.3±45.0 °C(Predicted) |
| Density | 1.30±0.1 g/cm3(Predicted) |
| pka | 13.19±0.40(Predicted) |
| Water Solubility | 5.065g/L at 20℃ |
| LogP | -1.34 at 20℃ |
| EPA Substance Registry System | (Hexahydro-6-methyl-2-oxo-4-pyrimidinyl)urea (1129-42-6) |
6-methyl-2-oxoperhydropyrimidin-4-ylurea Chemical Properties,Uses,Production
Uses
significantly increases the activity of urease and dehydrogenase soil enzymes as well as yield and quality of banana on inceptisol.
Production Methods
6-methyl-2-oxoperhydropyrimidin-4-ylurea, is obtained either by condensation of urea with crotonaldehyde in the presence of acid or by the more straightforward route involving condensation of urea with acetaldehyde in the molar ratio 1 : 1 in the presence of acid, which is used in industry. 2,7-Dioxo-4,5-dimethyldecahydropyrimido[4,5-d]pyrimidine is formed as a byproduct in the second route.
2-Oxo-4-ureido-6-methylhexahydropyrimidine is produced industrially by a continuous process employing a stirred tank cascade. A 70% urea solution is treated with acetaldehyde at a molar ratio of 1 : 1 in the presence of a catalytic amount of 75% sulfuric acid. The exothermic reaction is kept between 38 and 60 ℃ by controlled cooling. The pH is initially kept above 3 and in the final reactors below 2 by addition of sulfuric acid. Average residence time in the cascade is 40 min. In the last stirred tank, the reaction mixture is neutralized with aqueous potassium hydroxide solution. Drying is carried out in a spray tower.
Flammability and Explosibility
Non flammable
Agricultural Uses
Crotonylidene diurea (CDU) or crotonylidene urea is a fertilizer containing 28% nitrogen which is released slowly. CDU is made by reacting crotonaldehyde with urea in a 1:2 ratio.
6-methyl-2-oxoperhydropyrimidin-4-ylurea Preparation Products And Raw materials
6-methyl-2-oxoperhydropyrimidin-4-ylurea Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Hubei Xinyang Medical Technology Co., Ltd | 15347293736 15347293736 | 2853117764@qq.com | China | 8695 | 58 |
| Shaanxi DIDU pharmaceutical and Chemical Co., Ltd | 15229059051 | 1027@dideu.com | China | 9946 | 58 |
| Supplier | Advantage |
|---|---|
| Hubei Xinyang Medical Technology Co., Ltd | 58 |
| Shaanxi DIDU pharmaceutical and Chemical Co., Ltd | 58 |