8-azaspiro[4.5]decane-7,9-dione

C9H13NO2

CAS1075-89-4
GHS06 Gefahrensymbol: Giftig – Totenkopf mit Knochen
GHS09 Gefahrensymbol: Umweltgefährlich – Umwelt
Danger

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Identification

CAS Number
1075-89-4
EC Number
427-770-4
UN Number
2811
Index Number
606-107-00-4
PubChem CID
136843

Physical-chemical properties

Molecular Formula
C9H13NO2
Molar Mass
167.20 g/mol
IUPAC Name
8-azaspiro[4.5]decane-7,9-dione

Chemical Identifiers

InChI
InChI=1S/C9H13NO2/c11-7-5-9(3-1-2-4-9)6-8(12)10-7/h1-6H2,(H,10,11,12)
InChI Key
YRTHJMQKDCXPAY-UHFFFAOYSA-N

Overview

8-azaspiro[4.5]decane-7,9-dione (CAS 1075-89-4) is a spirocyclic organic compound featuring a bicyclic lactam structure with notable pharmaceutical intermediate properties. This heterocyclic compound represents an important class of spirocyclic molecules characterized by its unique fused ring system containing a nitrogen atom within a cyclic imide framework. With the molecular formula C9H13NO2 and a molecular weight of 167.2 g/mol, this substance exhibits distinctive structural features that make it valuable for specialized chemical applications. The compound's spirocyclic architecture, where two rings share a single carbon atom, provides rigid three-dimensional geometry that is particularly sought after in medicinal chemistry and advanced organic synthesis. From a safety perspective, 8-azaspiro[4.5]decane-7,9-dione requires careful handling protocols due to its classification as Acute Tox. 3 and Aquatic Chronic 2 under GHS regulations. The presence of GHS06 and GHS09 pictograms indicates both acute toxicity hazards and environmental concerns, necessitating appropriate personal protective equipment and containment measures during storage and use. Its ADR classification of 6.1 confirms its status as a toxic substance requiring specialized transport conditions. The compound finds primary applications as a pharmaceutical intermediate in the synthesis of complex drug molecules, particularly where rigid spirocyclic frameworks are required. It serves as a valuable building block in medicinal chemistry research and custom synthesis projects. Unlike simpler aromatic compounds such as N-methylaniline, this spirocyclic structure offers enhanced molecular complexity for advanced pharmaceutical development. OYSI provides reliable access to 8-azaspiro[4.5]decane-7,9-dione through its European distribution network, ensuring consistent quality and regulatory compliance for research and industrial applications.

Safety & Classification

Danger
Classification:

Acute Tox. 3 *; Aquatic Chronic 2

HHazard Statements (H-Statements)

Describe the nature and severity of the hazard

H301

Toxic if swallowed.

H411

Toxic to aquatic life with long lasting effects.

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

Ingestion

Toxic

Measures if substance is accidentally swallowed

First Aid Actions

  • +P301IF SWALLOWED:
  • +P330Rinse mouth.
  • +P331Do NOT induce vomiting.
  • +P310Immediately call a POISON CENTER/doctor.

Related hazard statements:

General Measures

Emergency 112 | Poison Control: +49 30 19240 (DE), +33 1 45 42 59 59 (FR), +31 30 274 88 88 (NL)

First aid measures are based on CLP classification and associated P-statements. They do not replace the Safety Data Sheet (SDS). In case of emergency, always consult the full SDS and a physician.

Transport (ADR)

UN Number2811
ADR Class6.1
Packing GroupIII
Tunnel CodeE
Proper Shipping Name8-Azaspiro[4.5]decan-7,9-dion
Marine PollutantNo

Frequently Asked Questions

What is 8-azaspiro[4.5]decane-7,9-dione?

8-azaspiro[4.5]decane-7,9-dione is an organic chemical compound with the molecular formula C9H13NO2 and CAS number 1075-89-4. This spirocyclic compound features a nitrogen atom integrated into a unique bicyclic structure with two ketone functional groups. With a molecular weight of 167.2 g/mol, it belongs to the family of azaspiro compounds and is classified as acutely toxic and chronically hazardous to aquatic environments.

What are the physicochemical properties of 8-azaspiro[4.5]decane-7,9-dione?

8-azaspiro[4.5]decane-7,9-dione exhibits properties typical of nitrogen-containing heterocycles with ketone functionalities. The compound's spirocyclic structure influences its physical characteristics, including melting point, solubility, and stability. As an organic compound with both polar ketone groups and a nitrogen heteroatom, it likely demonstrates moderate polarity affecting its solubility in various solvents. Specific physical data such as appearance and odor should be verified through material safety data sheets.

What is 8-azaspiro[4.5]decane-7,9-dione used for?

8-azaspiro[4.5]decane-7,9-dione serves primarily as an intermediate in pharmaceutical and fine chemical synthesis. Its unique spirocyclic structure makes it valuable for developing complex molecular architectures in medicinal chemistry. The compound may be utilized in research applications for synthesizing bioactive molecules, particularly those requiring nitrogen-containing heterocyclic scaffolds. Its specific applications depend on the target molecules being synthesized and the desired pharmaceutical or research outcomes.

How to handle 8-azaspiro[4.5]decane-7,9-dione safely?

8-azaspiro[4.5]decane-7,9-dione requires careful handling due to its Acute Tox. 3 classification and Danger signal word. Essential personal protective equipment includes chemical-resistant gloves, safety goggles, and lab coats. Work should be conducted in well-ventilated areas or under fume hoods to prevent inhalation exposure. Avoid skin and eye contact, and ensure emergency shower and eyewash stations are accessible. Handle quantities according to risk assessment protocols and maintain awareness of GHS06 pictogram warnings.

How to store 8-azaspiro[4.5]decane-7,9-dione correctly?

8-azaspiro[4.5]decane-7,9-dione should be stored in tightly sealed containers in a cool, dry, well-ventilated area away from incompatible materials. Due to its acute toxicity classification, storage areas must be secure and accessible only to trained personnel. Keep containers properly labeled with hazard information and avoid exposure to extreme temperatures or moisture. Storage facilities should comply with local regulations for toxic substances and include appropriate secondary containment measures to prevent environmental release.

What to do in case of contact with 8-azaspiro[4.5]decane-7,9-dione?

Immediate action is required following contact with 8-azaspiro[4.5]decane-7,9-dione due to its acute toxicity. For skin contact, remove contaminated clothing and rinse affected area with plenty of water for at least 15 minutes. If eye contact occurs, flush immediately with water and seek medical attention. In case of inhalation, move to fresh air and monitor breathing. For ingestion, do not induce vomiting and seek immediate medical care. Always consult the safety data sheet for specific first aid measures.

How to dispose of 8-azaspiro[4.5]decane-7,9-dione appropriately?

8-azaspiro[4.5]decane-7,9-dione waste must be disposed of according to local and national hazardous waste regulations due to its acute toxicity and aquatic chronic hazard classifications. Contact licensed hazardous waste disposal companies for proper treatment and disposal. Never dispose of this substance through regular waste streams or pour into drains. Waste containers should be clearly labeled and stored securely until collection. Disposal methods may include high-temperature incineration at authorized facilities following applicable environmental regulations.

How to transport 8-azaspiro[4.5]decane-7,9-dione?

8-azaspiro[4.5]decane-7,9-dione is classified under ADR Class 6.1 (Toxic substances), Packing Group III for transportation. This classification requires specific packaging, labeling, and documentation according to dangerous goods regulations. Packages must display appropriate hazard labels and UN identification numbers. Transportation should only be conducted by trained personnel familiar with dangerous goods handling procedures. Proper shipping papers and emergency response information must accompany shipments, and vehicles must comply with ADR requirements for toxic substance transport.

Is 8-azaspiro[4.5]decane-7,9-dione subject to specific regulations?

8-azaspiro[4.5]decane-7,9-dione is subject to various chemical regulations including REACH registration requirements in Europe and CLP classification for hazard communication. The substance is not currently listed as a Substance of Very High Concern (SVHC). Companies handling this chemical must comply with occupational safety regulations, environmental protection laws, and proper hazard classification under GHS. Users should verify current regulatory status and any restrictions that may apply to their specific applications and quantities.

Where to buy 8-azaspiro[4.5]decane-7,9-dione in Europe?

8-azaspiro[4.5]decane-7,9-dione is available through OYSI, a trusted European distributor of specialty chemicals and pharmaceutical intermediates. OYSI provides quality chemical products to research institutions, pharmaceutical companies, and industrial customers across Europe. For procurement, contact OYSI directly to discuss quantities, specifications, and delivery requirements. As a specialized chemical, availability may vary, so advance ordering is recommended to ensure supply continuity for your research or manufacturing needs.

Data Sources

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