Preliminary reference disclaimer
This preliminary safety reference is generated from structured MolGraph catalog fields and public reference-style data. It is not a supplier-issued Safety Data Sheet and should not be used as a substitute for supplier-issued documentation, workplace safety review, transport classification, or regulatory compliance decisions. For supplier SDS or COA, submit a documentation request through MolGraph.
Documentation status
Preliminary safety reference
Available
Supplier-issued SDS
Available by request
COA
Available by RFQ / lot confirmation
Transport classification
Requires shipment review
Identity
CAS Number
98-03-3
Chemical name
2-Thiophenecarboxaldehyde
Molecular formula
C5H4OS
Molecular weight
112.15 g/mol
Synonyms
2-Thiophenealdehyde; 2-Thienylaldehyde; 2-Thienylcarboxaldehyde; 2-Thienaldehyde; 2-Thiophene carboxaldehyde; alpha-Formylthiophene; alpha-Thiophenecarboxaldehyde; 2-Thenaldehyde; 2-Thiophenecarbaldehyde; formylthiophene; Thenaldehyde; 2-Thiophenaldehyde
InChIKey
CNUDBTRUORMMPA-UHFFFAOYSA-N
PubChem CID
7364
Hazard / GHS Reference
Signal word
Warning
Catalog reference cue; confirm supplier documentation before use.
Hazard statements
H302
Catalog reference cue; confirm supplier documentation before use.
Handling & PPE
- Use a P95 (US) or P1 (EU UK 143) particulate respirator if exposed to hazardous environments. For higher level of protection, use an OV/AG/P99 (US) or ABEK-P2 (EU UK 143) gas filter. Respirators must be tested and approved by government standards such as NIOSH (US) or CEN (EU).
- Dispose of remaining and non-recyclable solutions to a licensed company. Contact a professional agency with a waste disposal license to handle this substance. Burn contaminated packaging in a chemical incinerator with post-combustion and scrubbing capabilities. Contaminated packaging is to be disposed of as unutilized product.
First Aid / Accidental Release
- Do not give anything to an unconscious person. Rinse mouth with water. Consult a physician.
- If inhaled, move the person to fresh air. If breathing stops, perform artificial respiration. Consult a physician.
- Rinse with plenty of water for at least 15 minutes and consult a physician.
- Wash with soap and plenty of water. Consult a physician.
- Use personal protective equipment. Avoid dust generation. Avoid inhalation of vapors, mist or gas. Ensure adequate ventilation. Evacuate personnel to a safe area. Avoid inhalation of dust. See
- Do not allow the product to enter drains.
- Dispose of remaining and non-recyclable solutions to a licensed company. Contact a professional agency with a waste disposal license to handle this substance. Burn contaminated packaging in a chemical incinerator with post-combustion and scrubbing capabilities. Contaminated packaging is to be disposed of as unutilized product.
Firefighting / Stability
- and reactivity
Physical and Chemical Reference
Appearance
Liquid; [Sigma-Aldrich MSDS]
Catalog reference value; verify against supplier SDS before use.
Boiling Point
75–77 °C
Catalog reference value; verify against supplier SDS before use.
Vapor Pressure
Estimated value, unit not specified
Catalog reference value; verify against supplier SDS before use.
XLogP
1
Catalog reference value; verify against supplier SDS before use.
Transport / Shipment Review
Shipment review
Shipment details require review before fulfillment.
Transport classification must be confirmed using supplier SDS and shipment documentation before dispatch.
- Transport classification must be confirmed using supplier SDS and shipment documentation before dispatch.