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98-03-3

Basic information
1. Product Name: 2-Thenaldehyde
2. Synonyms: 2-Thiophenecarboxaldehyde ,98%;2-Thiophenecarboxaldehyde,Thenaldehyde;2-Thiophenecarboxald;2-Thiophenecarboxaldehyde (stabilized with HQ);2-Formylthiophene, 2-Thenaldehyde;2-Thiophenecarboxaldehyde, 98% 100ML;THIOPHENE-2-CARBALDEHYDE FOR SYNTHESIS;2-Thiophenecarboxaldehyde 98%
3. CAS NO:98-03-3
4. Molecular Formula: C5H4OS
5. Molecular Weight: 112.15
6. EINECS: 202-629-8
7. Product Categories: Thiophen;Thiophenes & Benzothiophenes;Building Blocks;C1 to C6;C4 to C6;Carbonyl Compounds;Chemical Synthesis;Heterocyclic Building Blocks;Organic Building Blocks;aldehyde;Thiophenes;Aromatic Aldehydes & Derivatives (substituted);Aldehydes;Thiophenes & Benzothiophenes;Thiophene&Benzothiophene;Teniposide Ketotifen;Functional Materials;Reagents for Conducting Polymer Research;Thiophene Derivatives (for Conduting Polymer Research)
8. Mol File: 98-03-3.mol
9. Article Data: 251
Chemical Properties
1. Melting Point: <10°C
2. Boiling Point: 198 °C(lit.)
3. Flash Point: 172 °F
4. Appearance: clear yellow/liquid (clear)
5. Density: 1.2 g/mL at 25 °C(lit.)
6. Vapor Pressure: 0.368mmHg at 25°C
7. Refractive Index: n20/D 1.591(lit.)
8. Storage Temp.: 2-8°C
9. Solubility: Chloroform (Slightly), DMSO (Slightly), Ethyl Acetate (Slightly)
10. Water Solubility: insoluble
11. Sensitive: Air Sensitive
12. BRN: 105819
13. CAS DataBase Reference: 2-Thenaldehyde(CAS DataBase Reference)
14. NIST Chemistry Reference: 2-Thenaldehyde(98-03-3)
15. EPA Substance Registry System: 2-Thenaldehyde(98-03-3)
Safety Data
1. Hazard Codes: Xn,Xi
2. Statements: 22-36/37/38-43
3. Safety Statements: 36/37/39-37-24-36-26
4. RIDADR: UN 2810
5. WGK Germany: 3
6. RTECS: XM8135000
7. F: 9
8. TSCA: Yes
9. HazardClass: N/A
10. PackingGroup: N/A
11. Hazardous Substances Data: 98-03-3(Hazardous Substances Data)

Suppliers
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Well-known Company Product Price
SDS
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98-03-3 Suppliers

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Product	FOB Price	Min.Order	Supply Ability	Supplier
high quality 2-Thenaldehyde 99%min. cas no.98-03-3 Cas No: 98-03-3	No Data	200 Kilogram	30 Metric Ton/Month	Rely Chemicals Ltd.	Contact Supplier
hight quality 2-Thiophene Carboxaldehyde Cas No: 98-03-3	No Data	1 Kilogram	10 Metric Ton/Month	Luyunjia Chemistry Xiamen Limited	Contact Supplier
2-Thenaldehyde Cas No: 98-03-3	USD $ 3.0-3.0 / Kilogram	1 Kilogram	1-100 Metric Ton/Month	Dayang Chem (Hangzhou) Co.,Ltd.	Contact Supplier
High quality 2-Thiophene Carboxaldehyde supplier in China Cas No: 98-03-3	No Data	1 Metric Ton	30 Metric Ton/Month	Simagchem Corporation	Contact Supplier
2-Thenaldehyde Cas No: 98-03-3	USD $ 10.0-15.0 / Kilogram	1 Kilogram	200 Metric Ton/Year	Jinan Finer Chemical Co., Ltd	Contact Supplier
98-03-3, 2-Thenaldehyde Cas No: 98-03-3	No Data	1 Kilogram	1 Kilogram/Month	Henan Allgreen Chemical Co.,Ltd	Contact Supplier
2-Thenaldehyde /CAS 98-03-3 Cas No: 98-03-3	No Data	No Data	Metric Ton/Day	ORCHID CHEMICAL SUPPLIES LTD	Contact Supplier
2-Thiophene Aldehyde Cas No: 98-03-3	USD $ 2.0-3.0 / Kilogram	1 Kilogram	100 Metric Ton/Day	EAST CHEMSOURCES LIMITED	Contact Supplier
Factory Supply Thiophene-2-carbaldehyde Cas No: 98-03-3	No Data	1	1	Ality Chemical Corporation	Contact Supplier
professional supplier 2-Thenaldehyde made in China Cas No: 98-03-3	No Data	100 Gram	800 Metric Ton/Month	Puyang Huicheng Electronic Material Co., Ltd	Contact Supplier

98-03-3 Usage

Chemical Properties

clear yellow to light brown liquid

Uses

Different sources of media describe the Uses of 98-03-3 differently. You can refer to the following data:
1. Thiophene derivatives, introducing thenyl group into organic compounds.
2. 2-Thiophenecarboxaldehyde is used in the synthesis of β-aryl-β-amino acids, urea derivatives. Arylation reagent. Also used to synthesize unsaturated ketones as antiviral and cytotoxic agents.

Definition

ChEBI: An aldehyde that is thiphene substituted by a formyl group at position 2.

Synthesis Reference(s)

Synthesis, p. 757, 1976 DOI: 10.1055/s-1976-24193Tetrahedron Letters, 36, p. 455, 1995 DOI: 10.1016/0040-4039(94)02284-I

General Description

Pharmaceutical secondary standards for application in quality control provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards

Purification Methods

Wash it with 50% HCl and distil it under reduced pressure just before use. It has UV: 234nm (hexane). The Z-oxime has m 144o, 136-138o and 142o (H2O). [Beilstein

Check Digit Verification of cas no

The CAS Registry Mumber 98-03-3 includes 5 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 2 digits, 9 and 8 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 98-03:
(4*9)+(3*8)+(2*0)+(1*3)=63
63 % 10 = 3
So 98-03-3 is a valid CAS Registry Number.

InChI:InChI=1/C5H4OS/c6-4-5-2-1-3-7-5/h1-4H

98-03-3 Well-known Company Product Price

Brand	(Code)Product description	CAS number	Packaging	Price	Detail
TCI America	(T0725) 2-Thiophenecarboxaldehyde (stabilized with HQ) >98.0%(GC)	98-03-3	25mL	220.00CNY	Detail
TCI America	(T0725) 2-Thiophenecarboxaldehyde (stabilized with HQ) >98.0%(GC)	98-03-3	100mL	660.00CNY	Detail
TCI America	(T0725) 2-Thiophenecarboxaldehyde (stabilized with HQ) >98.0%(GC)	98-03-3	500mL	1,680.00CNY	Detail
Alfa Aesar	(A14344) Thiophene-2-carboxaldehyde, 98+%	98-03-3	100g	357.0CNY	Detail
Alfa Aesar	(A14344) Thiophene-2-carboxaldehyde, 98+%	98-03-3	500g	1696.0CNY	Detail
Alfa Aesar	(A14344) Thiophene-2-carboxaldehyde, 98+%	98-03-3	1000g	3237.0CNY	Detail
Aldrich	(T32409) 2-Thiophenecarboxaldehyde 98%	98-03-3	T32409-25G	298.35CNY	Detail
Aldrich	(T32409) 2-Thiophenecarboxaldehyde 98%	98-03-3	T32409-100G	575.64CNY	Detail

98-03-3SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017

1.Identification

1.1 GHS Product identifier

Product name	formylthiophene

1.2 Other means of identification

Product number	-
Other names	thiophene-2-carbaldehyde

1.3 Recommended use of the chemical and restrictions on use

Identified uses	For industry use only.
Uses advised against	no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number	-
Service hours	Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

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98-03-3

Basic information

Chemical Properties

Safety Data

98-03-3 Suppliers

Recommended suppliersmore

98-03-3 Usage

Chemical Properties

Uses

Definition

Synthesis Reference(s)

General Description

Purification Methods

Check Digit Verification of cas no

98-03-3 Well-known Company Product Price

98-03-3SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

1.Identification

1.1 GHS Product identifier

1.2 Other means of identification

1.3 Recommended use of the chemical and restrictions on use

1.4 Supplier's details

1.5 Emergency phone number

98-03-3Upstream product

98-03-3Downstream Products

98-03-3Recommend Products