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21118

Sigma-Aldrich

Calcium citrate tribasic tetrahydrate

BioUltra, ≥98.0% (calc. on dry substance, KT)

Synonym(s):

Citric acid calcium salt, Tricalcium dicitrate

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About This Item

Linear Formula:
Ca3(C6H5O7)2 · 4H2O
CAS Number:
5785-44-4
Molecular Weight:
570.49
Beilstein:
3924520
EC Number:
212-391-7
MDL number:
MFCD00150786
UNSPSC Code:
12161700
PubChem Substance ID:
57647903
NACRES:
NA.25
grade:
reagent grade
form:
powder
solubility:
0.1 M HCl: 0.01 M at 20 °C, clear, colorless

grade

reagent grade

product line

BioUltra

Assay

≥98.0% (calc. on dry substance, KT)

form

powder

impurities

Insoluble matter, passes filter test

loss

10-14% loss on drying, 180°C, 4 h

solubility

0.1 M HCl: 0.01 M at 20 °C, clear, colorless

anion traces

chloride (Cl-): ≤50 mg/kg
sulfate (SO42-): ≤100 mg/kg

cation traces

As: ≤0.1 mg/kg
Ba: ≤5 mg/kg
Bi: ≤5 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤50 mg/kg
Hg: ≤0.1 mg/kg
K: ≤500 mg/kg
Li: ≤5 mg/kg
Mg: ≤1000 mg/kg
Mn: ≤50 mg/kg
Mo: ≤5 mg/kg
Na: ≤100 mg/kg
Ni: ≤5 mg/kg
Pb: ≤1 mg/kg
Sr: ≤100 mg/kg
Zn: ≤5 mg/kg

λ

0.01 M in 0.1 M HCl

UV absorption

λ: 260 nm Amax: 0.04
λ: 280 nm Amax: 0.03

SMILES string

O.O.O.O.OC1(CC(=O)O[Ca]OC(=O)C1)C(=O)O[Ca]OC(=O)C2(O)CC(=O)O[Ca]OC(=O)C2

InChI

1S/2C6H8O7.3Ca.4H2O/c2*7-3(8)1-6(13,5(11)12)2-4(9)10;;;;;;;/h2*13H,1-2H2,(H,7,8)(H,9,10)(H,11,12);;;;4*1H2/q;;3*+2;;;;/p-6

InChI key

LNIZKKFWMDARJV-UHFFFAOYSA-H

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Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
BCCF5748
BCBK2925V
1360437V
BCBC7525V
BCBC7525

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Sherry Huang et al.
Nanotechnology, 20(37), 375102-375102 (2009-08-27)
Taking calcium supplements can reduce the risk of developing osteoporosis, but they are not readily absorbed in the gastrointestinal tract. Nanotechnology is expected to resolve this problem. In the present study, we examined whether the bioavailability of calcium carbonate and
PPIs and fracture risk.
The Medical letter on drugs and therapeutics, 55(1410), 15-16 (2013-03-06)
Wei Wang et al.
Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 21(2), 456-465 (2012-03-22)
The aim of the study was to test whether calcium citrate combined with rhBMP-2 was able to enhance bone regeneration compared with a matrix containing only rhBMP-2. In each of experimental mice, one cylinder of calcium citrate-rhBMP-2 or rhBMP-2 alone
Jochen Klaus et al.
World journal of gastroenterology, 17(3), 334-342 (2011-01-22)
To compare the effect of calcium and cholecalciferol alone and along with additional sodium fluoride or ibandronate on bone mineral density (BMD) and fractures in patients with Crohn's disease (CD). Patients (n =148) with reduced BMD (T-score < -1) were
Wei Zhang et al.
Asian Pacific journal of tropical medicine, 5(4), 310-314 (2012-03-28)
To explore effect of calcium citrate on bone integration in a rabbit femur defect model, and to compare the bone formation with different sizes by radiological and histological study. Twenty-four male Japanese white rabbits were randomly divided into three groups
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