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3-Pyridinesulfonic acid

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3-Pyridinesulfonic acid Basic information

Product Name:
3-Pyridinesulfonic acid
Synonyms:
  • 3-sulfopyridine
  • PYRIDINE-3-SULPHONIC ACID
  • PYRIDINE-3-SULFONIC ACID
  • 3-pyridylsulfonicacid
  • Pyridinesulfonic aci
  • 3-Pyridinesulfonic acid >=98.0% (T)
  • Pyridine-3-sulfonic acid for synthesis
  • Vonoprazan Fumarate impurity O
CAS:
636-73-7
MF:
C5H5NO3S
MW:
159.16
EINECS:
211-265-9
Product Categories:
  • Pyridines, Pyrimidines, Purines and Pteredines
  • Pyridine
  • Organic acids
  • Heterocycle-Pyridine series
Mol File:
636-73-7.mol
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3-Pyridinesulfonic acid Chemical Properties

Melting point:
>300 °C (lit.)
Density 
1.7130
refractive index 
1.5480 (estimate)
storage temp. 
Keep in dark place,Sealed in dry,Room Temperature
pka
-2.30±0.18(Predicted)
form 
Crystalline Powder
color 
White to almost white
Water Solubility 
soluble
λmax
262nm(EtOH aq.)(lit.)
Sensitive 
Light Sensitive
BRN 
120822
InChIKey
DVECLMOWYVDJRM-UHFFFAOYSA-N
CAS DataBase Reference
636-73-7(CAS DataBase Reference)
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Safety Information

Hazard Codes 
C
Risk Statements 
34-22
Safety Statements 
26-36/37/39-45-27
RIDADR 
UN 2585 8/PG 3
WGK Germany 
3
RTECS 
UT7920000
HazardClass 
8
PackingGroup 
III
HS Code 
29333999

MSDS

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3-Pyridinesulfonic acid Usage And Synthesis

Chemical Properties

white to almost white crystalline powder

Uses

3-Pyridinesulfonic acid can be used in the synthesis of reaction intermediates, such as silver 3-pyridinesulfonate and 3-pyridinesulfonyl chloride.

Purification Methods

Purify the acid by recrystallisation from H2O or aqueous EtOH as needles or plates. [pKa: Evans & Brown J Org Chem 27 3127 1962, IR: Arnett & Chawla J Am Chem Soc 100 214 1978.] UV in 50% aqueous EtOH has at 208 and 262nm. The ammonium salt max has m 243o (from H2O), the sulfonyl chloride has m 133-134o (from pet ether), the amide has m 110-111o (from H2O), the hydrochloride has m >300o(dec), and the N-methyl betaine has m 130o (from H2O). [Gastel & Wibaut Recl Trav Chim Pays-Bas 53 1031 1934, McIlvain & Goese J Am Chem Soc 65 2233 1943, Machek Monatsh Chem 72 77 1938, Beilstein 22 I 616, 22 II 309, 22/7 V 552.]

3-Pyridinesulfonic acid Preparation Products And Raw materials

Preparation Products

Raw materials

3-Pyridinesulfonic acidSupplier

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