Isobutylidenediurea
Chemical compound From Wikipedia, the free encyclopedia
Chemical compound From Wikipedia, the free encyclopedia
Isobutylidenediurea (abbreviated IBDU) is an organic compound with the formula (CH3)2CHCH{NHC(O)NH2}2. It is a derivative of urea (OC(NH2)2), which itself is highly soluble in water, but IBDU is not. It functions as a controlled-release fertiliser owing to its low solubility, which limits the rate of its hydrolysis to urea, which is a fast-acting fertiliser.[1]
Names | |
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Preferred IUPAC name
N,N′′-(2-Methylpropane-1,1-diyl)diurea | |
Other names
Isodur; Diureidoisobutane; Isobutylenediurea; Isobutylidene biurea; 1,1-Diureidisobutane; Isobutylidendiharnstoff;1,1'-Isobutylidenedi-urea; 1,1'-Isobutylidenebisurea; N,N-(isobutylidene)diurea; N,N-(Isobutylidene)bisurea | |
Identifiers | |
3D model (JSmol) |
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ChemSpider | |
ECHA InfoCard | 100.025.505 |
EC Number |
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MeSH | C014058 |
PubChem CID |
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UNII | |
CompTox Dashboard (EPA) |
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Properties | |
C6H14N4O2 | |
Molar mass | 174.204 g·mol−1 |
Appearance | White solid |
Low | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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It is produced by the condensation reaction of isobutyraldehyde and two equivalents of urea:
The controlled-release process is the reverse of the above reaction, which only occurs after the IBDU dissolves.
A number of CRF's have been developed based on urea. Related to IBDU is crotonylidene diurea (Crotodur). Simpler are various urea-formaldehyde materials such as ureaform, which consists of methylene diurea and dimethylene triurea.[2]
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