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PIPES, Free Acid, ULTROL Grade - CAS 5625-37-6 - Calbiochem

A zwitterionic N-substituted aminosulfonic acid useful in the pH range of 6.1-7.5. Has a pKa 6.76 at 25°C. Absorbance (0.5%, 0.25 N NaOH, 260 nm):0.18.

Synonym: PIPES, Free Acid, ULTROL Grade - CAS 5625-37-6 - Calbiochem, Piperazine-N,Nʹ- bis(2-ethanesulfonic Acid), Piperazine-N,Nʹ-bis(2-ethanesulfonic Acid)

  • CAS Number 5625-37-6

  • Empirical Formula (Hill Notation) C8H18N2O6S2

  • Molecular Weight 302.37

  •  MDL number MFCD00006159

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Properties

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Quality Level   100
assay   ≥98% dry basis (titration)
form   solid
mfr. no.   Calbiochem®
storage condition   OK to freeze
storage conditions   +15C to +30C
color   white
pKa ( 20 °C)   6.8
solubility   aqueous buffer: 50 mg/mL
  water: soluble
cation traces   heavy metals: <10 ppm
shipped in   ambient
InChI   1S/C8H18N2O6S2.Na/c11-17(12,13)7-5-9-1-2-10(4-3-9)6-8-18(14,15)16;/h1-8H2,(H,11,12,13)(H,14,15,16);/q;+1/p-1
InChI key   OGGAIRCLBMGXCZ-UHFFFAOYSA-M

Description

General description

A zwitterionic N-substituted aminosulfonic acid useful in the pH range of 6.1-7.5. Has a pKa 6.76 at 25°C.

Absorbance (0.5%, 0.25 N NaOH, 260 nm): <0.18.

Zwitterionic N-substituted aminosulfonic acid, active in the pH range of 6.0-8.5. Has a pKa of 6.8 at 20°C.

Warning

Toxicity: Standard Handling (A)

Reconstitution

Following reconstitution, store in the refrigerator (4°C). Stock solutions are stable for up to 3 months at 4°C.





From Catalog:

Desc. Field- replaced "active in the pH range 6.0-8.5"

Safety & Documentation

Safety Information

Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable

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