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| CAS No.: | 1918-77-0 |
|---|---|
| Name: | 2-Thiopheneacetic acid |
| Article Data: | 51 |
| Cas Database | |
| Molecular Structure: | |
|
|
|
| Formula: | C6H6O2S |
| Molecular Weight: | 142.178 |
| Synonyms: | 2-(2-Thienyl)aceticacid;2-(Thiophen-2-yl)acetic acid;2-Thienylethanoicacid;Thiophen-2-ylacetic acid; |
| EINECS: | 217-639-8 |
| Density: | 1.336 g/cm3 |
| Melting Point: | 63-64 °C(lit.) |
| Boiling Point: | 269.2 °C at 760 mmHg |
| Flash Point: | 116.6 °C |
| Solubility: | Soluble in water, ethanol, ether and carbon tetrachloride. |
| Appearance: | white to light yellow crystal powder |
| Hazard Symbols: |
 C, Xi
|
| Risk Codes: | 34-37-36/37/38 |
| Safety: | 26-36/37/39-45-24/25-27 |
| Transport Information: | UN 3261 8/PG 2 |
| PSA: | 65.54000 |
| LogP: | 1.37520 |
- 1918-78-13-Thiophenecarboxylicacid, 2-methyl-
- 1918-79-25-Methyl-2-thiophenecarboxylic acid
- 1918-82-7Thiophene, 2-ethenyl-
- 19188-74-04-[3-(4-Aminophenyl)propanoylamino]benzenesulfonyl fluoride; ethanesulfonic acid
- 19190-68-22H-Benzimidazol-2-one,1,3-dihydro-4-methyl-
- 191916-41-31-Propanone,1-(1,3-benzodioxol-5-yl)-2-(methylamino)-, (2S)-
- 191917-91-61,3-Dioxane-4-aceticacid, 6-(2-aminoethyl-2-13C)-2,2-dimethyl-,1,1-dimethylethyl ester, (4R-cis)- (9CI)
- 191927-74-91H-Indole-3-ethanamine,7-fluoro-
- 191930-58-2L-Alanine,N-[(3',6'-dihydroxy-3-oxospiro[isobenzofuran-1(3H),9'-[9H]xanthen]-5-yl)carbonyl]-,(2aR,4S,4aS,6R,9S,11S,12S,12aR,12bS)-6,12b-bis(acetyloxy)-9-[(2R,3S)-3-(benzoylamino)-2-hydroxy-1-oxo-3-phenylpropoxy]-12-(benzoyloxy)-2a,3,4,4a,5,6,9,10,11,12,12a,12b-dodecahydro-11-hydroxy-4a,8,13,13-tetramethyl-5-oxo-7,11-methano-1H-cyclodeca[3,4]benz[1,2-b]oxet-4-ylester
- 19193-29-4Zinc(2+),tris(1,2-ethanediamine-kN,kN')-, dihydroxide, (OC-6-11)-(9CI)
- 57382-97-5
ethyl thiophen-2-ylacetate
- 1918-77-0
Thiophene-2-acetic acid
| Conditions | Yield |
|---|---|
| With water; sodium hydroxide In ethanol at 20℃; for 1h; | 100% |
| With water; sodium hydroxide In ethanol at 20℃; for 1h; | 100% |
| Conditions | Yield |
|---|---|
| With oxygen; triethylamine at 80℃; for 15h; Reagent/catalyst; Temperature; | 96.5% |
| With Iron(III) nitrate nonahydrate; 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical; potassium chloride; oxygen In 1,2-dichloro-ethane at 25℃; for 12h; | 85% |
| With sodium hypochlorite; 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical In aq. phosphate buffer; water; acetonitrile at 35℃; for 6h; Catalytic behavior; Reagent/catalyst; Temperature; Green chemistry; | 85% |
| With iridium hexafluoride; sulphate-doped anatase; potassium oxide In dichloromethane at 85℃; Temperature; |
- 19432-68-9
methyl 2-thiopheneacetate
- 1918-77-0
Thiophene-2-acetic acid
| Conditions | Yield |
|---|---|
| With sodium hydroxide for 2h; Heating; | 94% |
- 35320-27-5
2,2,2-trichloro-1-(thien-2-yl)-ethanol
- 1918-77-0
Thiophene-2-acetic acid
| Conditions | Yield |
|---|---|
| Stage #1: 2,2,2-trichloro-1-(thien-2-yl)-ethanol With sodium tetrahydroborate; diphenyl diselenide In ethanol Inert atmosphere; Stage #2: With sodium hydroxide In ethanol at 40℃; Inert atmosphere; | 94% |
- 20893-30-5
2-cyanomethylthiophene
- 1918-77-0
Thiophene-2-acetic acid
| Conditions | Yield |
|---|---|
| With sodium hydroxide In water for 5h; Reflux; | 93.4% |
| With water; potassium hydroxide In ethanol for 3h; Inert atmosphere; Reflux; | 74% |
| With potassium hydroxide |
- 89244-23-5, 89244-24-6
N-((E)-1-Cyano-2-thiophen-2-yl-vinyl)-4,N-dimethyl-benzamide
- 1918-77-0
Thiophene-2-acetic acid
| Conditions | Yield |
|---|---|
| With hydrogenchloride In tetrahydrofuran for 6h; Heating; | 89% |
| Conditions | Yield |
|---|---|
| With sodium chloride; iodine In water; acetic acid; ethyl acetate | 86% |
- 91668-56-3
α-(N-Methylanilino)-β-(2-thienyl)acrylonitrile
- 1918-77-0
Thiophene-2-acetic acid
| Conditions | Yield |
|---|---|
| With hydrogenchloride In tetrahydrofuran for 10h; Heating; | 83% |
- 15504-41-3
2-oxo-3-(thiophen-2-yl)propanoic acid
- 1918-77-0
Thiophene-2-acetic acid
| Conditions | Yield |
|---|---|
| With sodium perborate In water for 48h; Ambient temperature; | 68% |
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Chemistry
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IUPAC Name: 2-Thiophen-2-ylacetic acid
Canonical SMILES: C1=CSC(=C1)CC(=O)O
InChI: InChI=1S/C6H6O2S/c7-6(8)4-5-2-1-3-9-5/h1-3H,4H2,(H,7,8)
InChIKey: SMJRBWINMFUUDS-UHFFFAOYSA-N
Molecular Weight: 142.17564 [g/mol]
Molecular Formula: C6H6O2S
XLogP3: 1
H-Bond Donor: 1
H-Bond Acceptor: 2
EINECS: 217-639-8
Index of Refraction: 1.587
Molar Refractivity: 35.75 cm3
Molar Volume: 106.3 cm3
Surface Tension: 54.3 dyne/cm
Density: 1.336 g/cm3
Flash Point: 116.6 °C
Enthalpy of Vaporization: 53.59 kJ/mol
Boiling Point: 269.2 °C at 760 mmHg
Vapour Pressure: 0.00363 mmHg at 25 °C
Appearance: white to light yellow crystal powder
Melting Point: 63-64 °C(lit.)
Product Categories: Drug Intermediates; Heterocycles; Thiophene&Benzothiophene; Organic acids; Thiophens; Cephaloridine
Uses
2-Thiopheneacetic acid (CAS NO.1918-77-0) is used as pharmaceutical intermediates to product cefaloridine, Cefalotin sodium,etc.
Safety Profile
Safety Information of 2-Thiopheneacetic acid (CAS NO.1918-77-0):
Hazard Codes:C 
,Xi 
Risk Statements:34-37-36/37/38
34:Causes burns
37:Irritating to the respiratory system
36/37/38:Irritating to eyes, respiratory system and skin
Safety Statements: 26-36/37/39-45-24/25-27
26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
36/37/39:Wear suitable protective clothing, gloves and eye/face protection
45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible)
24/25:Avoid contact with skin and eyes
27:Take off immediately all contaminated clothing
RIDADR:UN 3261 8/PG 2
WGK Germany:3
Hazard Note:Irritant
TSCA:T
HazardClass:8
PackingGroup:III
Specification
2-Thiopheneacetic acid (CAS NO.1918-77-0), its Synonyms are 2-Thienylacetic acid ; Thiopheneacetic acid ; 2-(2-Thienyl)aceticacid ; 2-(Thiophen-2-yl)acetic acid ; Thiophen-2-ylacetic acid ; 2-Thienylethanoicacid .
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