Thiophene-2-carboxylic acid

Modify Date: 2025-08-23 14:16:51

Thiophene-2-carboxylic acid structure	Common Name	Thiophene-2-carboxylic acid
	CAS Number	527-72-0	Molecular Weight	128.149
	Density	1.4±0.1 g/cm3	Boiling Point	260.0±0.0 °C at 760 mmHg
	Molecular Formula	C₅H₄O₂S	Melting Point	125-127 °C(lit.)
	MSDS	Chinese USA	Flash Point	117.8±19.8 °C

Name	thiophene-2-carboxylic acid
Synonym	More Synonyms

Density	1.4±0.1 g/cm3
Boiling Point	260.0±0.0 °C at 760 mmHg
Melting Point	125-127 °C(lit.)
Molecular Formula	C₅H₄O₂S
Molecular Weight	128.149
Flash Point	117.8±19.8 °C
Exact Mass	127.993202
PSA	65.54000
LogP	1.57
Vapour Pressure	0.0±0.5 mmHg at 25°C
Index of Refraction	1.607
Water Solubility	80 g/L (20 ºC)

Thiophene-2-carboxylic acid MSDS(Chinese)

CHEMICAL IDENTIFICATION

RTECS NUMBER :: XM8330200

CHEMICAL NAME :: 2-Thiophenecarboxylic acid

CAS REGISTRY NUMBER :: 527-72-0

BEILSTEIN REFERENCE NO. :: 0110150

LAST UPDATED :: 199709

DATA ITEMS CITED :: 2

MOLECULAR FORMULA :: C5-H4-O2-S

MOLECULAR WEIGHT :: 128.15

WISWESSER LINE NOTATION :: T5SJ BVQ

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 1670 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: THERAP Therapie. (Doin, Editeurs, 8, Place de l'Odeon, F-75006 Paris, France) V.1- 1946- Volume(issue)/page/year: 26,831,1971

Personal Protective Equipment	dust mask type N95 (US);Eyeshields;Gloves
Hazard Codes	Xi:Irritant;
Risk Phrases	R36/37/38
Safety Phrases	S26-S36-S37/39
RIDADR	NONH for all modes of transport
WGK Germany	3
RTECS	XM8330200
HS Code	2934999090

Precursor 9
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DownStream 10
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HS Code	2934999090
Summary	2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

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2-Thiophenecarboxylic acid

thiophenic acid

thiofuroic acid

Thiophene-2-carboxylic acid

MFCD00005437

2-Thenoic Acid

THIOPHENECARBOXYLIC ACID

EINECS 208-423-4

2-Thiophenic acid

a-Thiophenecarboxylic Acid

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China
Product Name: 2-Thiophenecarboxylic acid
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Thiophene-2-carboxylic acid

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MSDS

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CHEMICAL IDENTIFICATION

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

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