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71501

Sigma-Aldrich

Sodium pyrophosphate dibasic

BioUltra, ≥99.0% (T)

Synonym(s):

Disodium dihydrogen pyrophosphate, Sodium diphosphate dibasic

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100 G
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1 KG
$462.00

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100 G
$81.30
1 KG
$462.00

About This Item

Linear Formula:
Na2H2P2O7
CAS Number:
7758-16-9
Molecular Weight:
221.94
EC Number:
231-835-0
MDL number:
MFCD00014246
UNSPSC Code:
12161700
PubChem Substance ID:
57652309
NACRES:
NA.25

$81.30

In StockDetails

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product line

BioUltra

Quality Level

200

assay

≥99.0% (T)

form

powder

impurities

insoluble matter, passes filter test

loss

≤0.5% loss on drying, 200 °C

pH

3.5-4.5 (20 °C, 0.1 M in H2O, freshly prepared)

solubility

H2O: 0.1 M at 20 °C, clear, colorless

anion traces

chloride (Cl-): ≤50 mg/kg

cation traces

Al: ≤5 mg/kg
As: ≤0.2 mg/kg
Ba: ≤5 mg/kg
Bi: ≤5 mg/kg
Ca: ≤50 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤10 mg/kg
K: ≤300 mg/kg
Li: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤5 mg/kg
Zn: ≤5 mg/kg

λ

1 M in H2O

UV absorption

λ: 260 nm Amax: 0.11
λ: 280 nm Amax: 0.09

SMILES string

[Na+].[Na+].OP([O-])(=O)OP(O)([O-])=O

InChI

1S/2Na.H4O7P2/c;;1-8(2,3)7-9(4,5)6/h;;(H2,1,2,3)(H2,4,5,6)/q2*+1;/p-2

InChI key

GYQBBRRVRKFJRG-UHFFFAOYSA-L

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Application

Sodium pyrophosphate dibasic has been used:
  • as a setting retardant[1]
  • as a component of STOP-washing buffer for in gel kinase assay[2]
  • as protease and phosphatase inhibitor in the preparation of western blot lysis buffer[3]

pictograms

Exclamation mark
GHS07

signalword

Warning

hcodes

H319

Hazard Classifications

Eye Irrit. 2

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Certificates of Analysis (COA)

Lot/Batch Number
BCCM6625
BCCG9531
BCCH6371
BCCC6245
BCCC4961

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In Gel Kinase Assay
Pizzio GA and Rodriguez PL
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Insulin tolerance test under anaesthesia to measure tissue-specific insulin-stimulated glucose disposal
Fazakerley DJ, et al.
eLife (2018)
Caroline Öhman et al.
Journal of materials science. Materials in medicine, 26(7), 210-210 (2015-07-15)
The porosity of calcium phosphate cements has an impact on several important parameters, such as strength, resorbability and bioactivity. A model to predict the porosity for biomedical cements would hence be a useful tool. At the moment such a model
Frédéric A Perras et al.
Journal of magnetic resonance (San Diego, Calif. : 1997), 211(2), 234-239 (2011-06-10)
Double-rotation (DOR) is the only technique generally capable of yielding high-resolution NMR spectra of half-integer quadrupolar nuclei in one dimension for solids without the need for sophisticated coherence pathway selection. Unfortunately, due to the low outer rotor spinning frequencies currently
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