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Merck
CN

71501

Sodium pyrophosphate dibasic

BioUltra, ≥99.0% (T)

Synonym(s):

Disodium dihydrogen pyrophosphate, Sodium diphosphate dibasic

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About This Item

Linear Formula:
Na2H2P2O7
CAS Number:
Molecular Weight:
221.94
NACRES:
NA.25
PubChem Substance ID:
UNSPSC Code:
12161700
EC Number:
231-835-0
MDL number:
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product line

BioUltra

Quality Level

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

Application

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



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pictograms

Exclamation mark

signalword

Warning

hcodes

Hazard Classifications

Eye Irrit. 2

Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)



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Brushite foams?the effect of T ween
Unosson J, et al.
Journal of biomedical research, 104(1), 67-77 (2016)
Insulin tolerance test under anaesthesia to measure tissue-specific insulin-stimulated glucose disposal
Fazakerley DJ, et al.
eLife (2018)
In Gel Kinase Assay
Pizzio GA and Rodriguez PL
Bio-protocol (2017)



Global Trade Item Number

SKUGTIN
71501-1KG04061826715123
71501-100G04061832848792