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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
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
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


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.


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:
63 % 10 = 3
So 98-03-3 is a valid CAS Registry Number.

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



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


1.1 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).

More Details:98-03-3 SDS

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