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
99651-37-3
Chemical name
1-methyl-1H-1,2,4-triazole-5-carbaldehyde
Molecular formula
C4H5N3O
Molecular weight
111.1 g/mol
Synonyms
2-methyl-2H-1,2,4-triazole-3-carbaldehyde; 2-methyl-2h-[1,2,4]triazole-3-carbaldehyde; 1-Methyl-1H-1,2,4-triazole-5-carboxaldehyde
InChIKey
OJBNZAZUTPLWDT-UHFFFAOYSA-N
PubChem CID
13624278
Hazard / GHS Reference
Signal word
Warning
Catalog reference cue; confirm supplier documentation before use.
Hazard statements
H315, H319, H335
Catalog reference cue; confirm supplier documentation before use.
Handling & PPE
- Keep container tightly closed and dry. Store in a well-ventilated place. Recommended storage conditions: nitrogen-purged, 2-8°C
- Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Provide suitable ventilation in areas where dust is generated. General fire protection measures.
- Use a P95 (US) or P1 (EU UK 143) particulate respirator if exposed to harmful environments. For higher level of protection, use OV/AG/P99 (US) or ABEK-P2 (EU UK 143) cartridges. 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 waste disposal license to handle this substance. Burn in a chemical incinerator with post-combustion and scrubbing capabilities if compatible with flammable solvents. Contaminated packaging. Dispose of contaminated packaging as for unused product.
First Aid / Accidental Release
- Do not give anything by mouth to an unconscious person. Rinse mouth with water. Consult a physician.
- If inhaled, move 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.
- Do not generate dust when collecting and disposing. Sweep and shovel up. Place in a suitable closed container for disposal.
- Use personal protective equipment and emergency procedures. Avoid dust generation. Avoid inhalation of vapors, mists or gases. Ensure adequate ventilation. Evacuate personnel to a safe area. Avoid inhalation of dust. See
- Do not allow product to enter drains.
- Dispose of remaining and non-recyclable solutions to a licensed company. Contact a professional agency with waste disposal license to handle this substance. Burn in a chemical incinerator with post-combustion and scrubbing capabilities if compatible with flammable solvents. Contaminated packaging. Dispose of contaminated packaging as for unused product.
Firefighting / Stability
- If necessary, wear self-contained breathing apparatus for firefighting.
- and reactivity
- Carbon monoxide, carbon dioxide, nitrogen oxides
Physical and Chemical Reference
XLogP
-0.2
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.