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25102

Sigma-Aldrich

Ammonium citrate dibasic

puriss., ≥98%

Synonym(s):

Ammonium hydrogencitrate, Citric acid ammonium salt, Diammonium hydrogen citrate

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50 MG
$297.00
100 MG
$508.00
250 MG
$896.00
500 MG
$1,374.60
1 G
$2,730.00

$297.00


Estimated to ship onJune 15, 2025


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50 MG
$297.00
100 MG
$508.00
250 MG
$896.00
500 MG
$1,374.60
1 G
$2,730.00

About This Item

Linear Formula:
HOC(CO2H)(CH2CO2NH4)2
CAS Number:
Molecular Weight:
226.18
Beilstein/REAXYS Number:
4925760
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

$297.00


Estimated to ship onJune 15, 2025


Request a Bulk Order

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

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1 of 4

This Item
2475611.0115409833
Quality Level

200

Quality Level

200

Quality Level

300

Quality Level

200

vapor density

1.8 (vs air)

vapor density

1.8 (vs air)

vapor density

-

vapor density

1.8 (vs air)

grade

puriss.

grade

-

grade

-

grade

-

impurities

≤0.001% heavy metals (as Pb)

impurities

oxalate, passes test (lim ~0.05%), ≤0.005% insolubles

impurities

≤0.005% Insoluble matter

impurities

insoluble matter, passes filter test

pH

4.5-5.5 (20 °C, 5%)

pH

5.2 (20 °C, 50 g/L)

pH

3.3-5.3 (23 g/L in H2O)

pH

4.0-5.5 (25 °C, 1 M in H2O)

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.[1][2][3] It can also be used as both the carbon and nitrogen source to synthesize fluorescent nitrogen-doped carbon nanoparticles (CNPs).[4]

pictograms

Exclamation mark

signalword

Warning

hcodes

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves


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