25102
Ammonium citrate dibasic
puriss., ≥98%
Synonym(s):
Ammonium hydrogencitrate, Citric acid ammonium salt, Diammonium hydrogen citrate
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About This Item
Linear Formula:
HOC(CO2H)(CH2CO2NH4)2
CAS Number:
Molecular Weight:
226.18
UNSPSC Code:
12352100
NACRES:
NA.22
PubChem Substance ID:
EC Number:
221-146-3
Beilstein/REAXYS Number:
4925760
MDL number:
Assay:
≥98%
vapor density
1.8 (vs air)
Quality Level
grade
puriss.
assay
≥98%
impurities
≤0.001% heavy metals (as Pb)
pH
4.5-5.5 (20 °C, 5%)
anion traces
chloride (Cl-): ≤50 mg/kg, sulfate (SO42-): ≤300 mg/kg
cation traces
Fe: ≤10 mg/kg
functional group
carboxylic acid, hydroxyl
SMILES string
N.N.OC(=O)CC(O)(CC(O)=O)C(O)=O
InChI
1S/C6H8O7.2H3N/c7-3(8)1-6(13,5(11)12)2-4(9)10;;/h13H,1-2H2,(H,7,8)(H,9,10)(H,11,12);2*1H3
InChI key
YXVFQADLFFNVDS-UHFFFAOYSA-N
Application
Ammonium citrate dibasic is generally used as a component of matrix solution in matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) mass spectrometry analysis. It can also be used as both the carbon and nitrogen source to synthesize fluorescent nitrogen-doped carbon nanoparticles (CNPs).
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signalword
Warning
hcodes
Hazard Classifications
Eye Irrit. 2 - Skin Irrit. 2
Storage Class
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Gloves
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Study of matrix and polymer substrate in MALDI-TOF mass spectrometry of DNA.
Kim Y and Hurst G B
Microchemical Journal, Devoted to the Application of Microtechniques in All Branches of Science, 70(3), 219-228 (2001)
Microwave-assisted ultrafast and facile synthesis of fluorescent carbon nanoparticles from a single precursor: preparation, characterization and their application for the highly selective detection of explosive picric acid.
Sun X, et al.
Journal of Materials Chemistry, 4(11), 4161-4171 (2016)
Dmitri V Zagorevskii et al.
Journal of the American Society for Mass Spectrometry, 17(9), 1265-1270 (2006-07-01)
Oligonucleotides synthesized on a montmorillonite catalyst were analyzed directly. By mixing the catalyst with a matrix (2,4,6-trihydroxyacetophenone or 6-aza-2-thiothymine) and dibasic ammonium citrate, higher molecular weight products were detected compared with "classical" methods such as gel electrophoresis and HPLC with