3-Pyridinesulfonic acid
Synonym(s):P3SA
- CAS NO.:636-73-7
- Empirical Formula: C5H5NO3S
- Molecular Weight: 159.16
- MDL number: MFCD00006381
- EINECS: 211-265-9
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-10-31 13:32:20
What is 3-Pyridinesulfonic acid?
Chemical properties
white to almost white crystalline powder
The Uses of 3-Pyridinesulfonic acid
3-Pyridinesulfonic acid can be used in the synthesis of reaction intermediates, such as silver 3-pyridinesulfonate and 3-pyridinesulfonyl chloride.
What are the applications of Application
3-Pyridinesulfonic acid is a heterocyclic building block
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.]
Properties of 3-Pyridinesulfonic acid
Melting point: | >300 °C (lit.) |
Density | 1.7130 |
refractive index | 1.5480 (estimate) |
storage temp. | Keep in dark place,Sealed in dry,Room Temperature |
form | Crystalline Powder |
pka | -2.30±0.18(Predicted) |
color | White to almost white |
Water Solubility | soluble |
Sensitive | Light Sensitive |
λmax | 262nm(EtOH aq.)(lit.) |
BRN | 120822 |
CAS DataBase Reference | 636-73-7(CAS DataBase Reference) |
Safety information for 3-Pyridinesulfonic acid
Signal word | Danger |
Pictogram(s) |
Corrosion Corrosives GHS05 |
GHS Hazard Statements |
H314:Skin corrosion/irritation |
Precautionary Statement Codes |
P260:Do not breathe dust/fume/gas/mist/vapours/spray. P280:Wear protective gloves/protective clothing/eye protection/face protection. P301+P330+P331:IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for 3-Pyridinesulfonic acid
InChIKey | DVECLMOWYVDJRM-UHFFFAOYSA-N |
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