Formamide

CH3NO

formamide

CAS75-12-7
GHS08 Gefahrensymbol: Gesundheitsgefahr – Gesundheitsgefahr
Danger

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Identification

CAS Number
75-12-7
EC Number
200-842-0
UN Number
Index Number
616-052-00-8
PubChem CID
713

Physical-chemical properties

Molecular Formula
CH3NO
Molar Mass
45.04 g/mol
IUPAC Name
formamide

Chemical Identifiers

InChI
InChI=1S/CH3NO/c2-1-3/h1H,(H2,2,3)
InChI Key
ZHNUHDYFZUAESO-UHFFFAOYSA-N

Overview

Formamide (CAS 75-12-7) is an organic amide compound with polar solvent properties and high boiling point characteristics. This colorless, hygroscopic liquid represents one of the simplest amide compounds in organic chemistry, serving as a versatile polar aprotic solvent in numerous industrial applications. With its molecular formula CH3NO and relatively low molecular weight of 45.041 g/mol, formamide exhibits exceptional solubility properties for both organic and inorganic compounds. The substance demonstrates remarkable thermal stability and maintains liquid state across a wide temperature range, making it particularly valuable in high-temperature chemical processes. From a safety perspective, formamide carries significant regulatory considerations due to its classification as Repr. 1B (reproductive toxicity category 1B), requiring the GHS08 health hazard pictogram and "Danger" signal word. Proper handling protocols and personal protective equipment are essential when working with this substance, particularly regarding potential reproductive health impacts. Industrial applications of formamide span multiple sectors, including its use as a solvent in pharmaceutical synthesis, as a processing aid in polymer production, and as an intermediate in chemical manufacturing. The compound also finds application in laboratory research as a protein denaturant and in crystallization processes. While sharing some applications with other polar solvents like 2-(2-methoxyethoxy)ethanol, formamide's unique amide structure provides distinct advantages in specific chemical reactions and formulations. OYSI maintains reliable supply chains for technical-grade formamide, ensuring consistent availability for European industrial customers requiring this specialized polar solvent for their manufacturing and research operations.

Safety & Classification

Danger
Classification:

Repr. 1B

Classification according to CLP Regulation (EC) No 1272/2008. The complete list of hazard and precautionary statements can be found in the Safety Data Sheet (SDS).

First Aid Measures

Frequently Asked Questions

What is formamide?

Formamide is an organic chemical compound with the formula CH3NO and CAS number 75-12-7. It is the simplest amide, derived from formic acid, with a molecular weight of 45.041 g/mol. This colorless liquid serves as an important industrial solvent and chemical intermediate. Formamide is classified as a reproductive toxicant (Repr. 1B) under CLP regulation, requiring careful handling due to its potential health hazards.

What are the physicochemical properties of formamide?

Formamide is a colorless, viscous liquid at room temperature with a faint ammonia-like odor. It has excellent solubility properties, being completely miscible with water and many organic solvents including alcohols and ethers. The compound has a high boiling point of approximately 210°C and freezes at around 2.5°C. Its high dielectric constant and polar nature make it an effective solvent for both ionic and polar compounds.

What is formamide used for?

Formamide is used primarily as a solvent in various industrial applications and as a chemical intermediate in pharmaceutical synthesis. It serves as a key component in the production of pharmaceuticals, pesticides, and other fine chemicals. In laboratory settings, formamide is commonly used in molecular biology applications, particularly in DNA and RNA research as a denaturing agent. It also finds application in the manufacture of paper processing chemicals and textile treatments.

How to handle formamide safely?

Formamide must be handled with extreme caution due to its reproductive toxicity classification (Repr. 1B). Essential personal protective equipment includes chemical-resistant gloves, safety goggles, and protective clothing to prevent skin contact. Work should be conducted in well-ventilated areas or under fume hoods to avoid inhalation. Given its GHS08 health hazard pictogram and 'Danger' signal word, only trained personnel should handle this substance, following strict safety protocols and workplace exposure limits.

How to store formamide correctly?

Formamide should be stored in tightly sealed containers in a cool, dry, well-ventilated area away from heat sources and direct sunlight. Storage temperatures should remain below 25°C to maintain stability. The substance should be kept away from strong oxidizing agents and acids to prevent dangerous reactions. Containers must be properly labeled according to CLP requirements, displaying appropriate hazard pictograms and safety information. Storage areas should have appropriate spill containment measures and restricted access.

What to do in case of contact with formamide?

Immediate action is required upon contact with formamide due to its reproductive toxicity. For skin contact, remove contaminated clothing and wash the affected area thoroughly with soap and water for at least 15 minutes. In case of eye contact, flush immediately with clean water for 15-20 minutes while holding eyelids open. If inhaled, move the person to fresh air immediately. For ingestion, do not induce vomiting and seek immediate medical attention, providing the safety data sheet to medical personnel.

How to dispose of formamide appropriately?

Formamide must be disposed of as hazardous waste according to local and European regulations due to its reproductive toxicity classification. The substance cannot be discharged into sewers, waterways, or regular waste streams. Disposal should only be conducted by licensed hazardous waste management companies following proper waste classification codes. Small laboratory quantities may require special collection procedures, while larger industrial amounts need documented waste transfer procedures complying with the European Waste Framework Directive.

How to transport formamide?

Formamide transport requirements depend on quantity and packaging, though specific ADR classification details are not readily available for this substance. Professional transport should follow general hazardous materials regulations, ensuring proper packaging in UN-approved containers with appropriate labeling displaying health hazard pictograms. Transport documentation must include safety data sheets and emergency response information. Drivers and handlers should be trained in hazardous materials transport procedures, and vehicles should carry appropriate spill response equipment.

Is formamide subject to particular regulations?

Formamide is subject to strict European regulations under REACH and CLP due to its reproductive toxicity (Repr. 1B) classification. While not currently listed as a SVHC (Substance of Very High Concern), its health hazard classification requires comprehensive risk assessments and safety measures. Industrial users must comply with occupational exposure limits and implement appropriate risk management measures. The substance may face future regulatory restrictions given ongoing evaluations of reproductive toxicants under European chemical legislation.

Where to buy formamide in Europe?

Formamide is available through OYSI, a leading European distributor of technical chemicals, serving customers across multiple European markets. As a specialized chemical distributor, OYSI provides formamide with proper documentation, safety data sheets, and regulatory compliance support. Given the substance's hazardous classification, OYSI ensures appropriate packaging, labeling, and transport arrangements. Professional customers requiring formamide for industrial or research applications can contact OYSI for availability, specifications, and regulatory guidance tailored to their specific European location.

Data Sources

Classification per CLP Regulation (EC) No 1272/2008. Data from ECHA and PubChem.