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
1119-19-3
Chemical name
2-Butynal
Molecular formula
C4H4O
Molecular weight
68.07 g/mol
Synonyms
Tetrolaldehyde; Methylacetyllealdehyde; 1-Formyl-1-propyne; InChI=1/C4H4O/c1-2-3-4-5/h4H,1H; METHYLPROPIOLIC ALDEHYDE; CH3C.equiv.CCHO; 2-Butynal (9CI); butaline; US10221162, Example 764.0; (2R,3S)-N-(4-(2,6-dimethoxyphenyl)-5-(5-methyl-3-pyridinyl)-4H-1,2,4-triazol-3-
InChIKey
REJPDMLLCDXIOV-UHFFFAOYSA-N
PubChem CID
136875
Hazard / GHS Reference
No GHS reference data is available in the current MolGraph catalog record.
Handling & PPE
Handling and PPE reference fields are not available in the current MolGraph catalog record.
First Aid / Accidental Release
First aid and accidental release reference fields are not available in the current MolGraph catalog record.
Firefighting / Stability
Firefighting and stability reference fields are not available in the current MolGraph catalog record.
Physical and Chemical Reference
Appearance
Liquid
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.