Overview
The CAS number 989111009 does not appear in the Chemical Abstracts Service registry, suggesting it may be an invalid, discontinued, or proprietary identifier. CAS numbers are unique numeric designations assigned to every chemical substance described in open scientific literature, serving as a universal identifier for precise chemical tracking. Organizations encountering unknown CAS numbers should cross-check with authoritative databases like PubChem, ChemSpider, or the CAS Registry itself. In B2B transactions, unverified identifiers may indicate miscommunication, custom formulations, or obsolete nomenclature that requires clarification from the supplier.
Physical and Chemical Properties
No reliable data exists for substances bearing the CAS 989111009. When dealing with unregistered CAS numbers, professionals should first confirm whether the identifier was transcribed correctly. Common issues include digit transpositions (e.g., 989-11-1009 vs. 98-91-11009) or confusion with similar-looking inventory numbers. If verification confirms the number's invalidity, request full chemical characterization from the supplier, including structural formula, purity, and spectral data. For proprietary mixtures, suppliers may provide limited information under confidentiality agreements while still disclosing hazard classifications.
Main Applications
Without verified chemical identity, potential applications cannot be determined. In industrial contexts, unlisted CAS numbers sometimes appear in three scenarios: novel research compounds not yet registered, regional naming variants, or proprietary blends where components are trade secrets. Buyers should insist on documented performance specifications when applications are claimed. For regulatory compliance, alternative identifiers like EC numbers or UN proper shipping names may be required if the CAS number proves invalid.
Safety and Storage
Assume unknown substances carry health and environmental risks until proven otherwise. Apply the precautionary principle: use personal protective equipment (PPE) including gloves, goggles, and fume hoods when handling. Store in clearly labeled, chemically compatible containers separate from working areas. Without a safety data sheet (SDS), follow OSHA's Hazard Communication Standard requirements for unclassified chemicals. Document all handling procedures and maintain exposure records. Consider small-scale testing under controlled conditions before bulk processing.
B2B Procurement Guide
When sourcing chemicals with unverified CAS numbers, implement a four-step verification protocol: 1) Require supplier-provided analytical certificates (COA) with testing methodology, 2) Cross-reference with alternative identifiers (IUPAC name, INCI, etc.), 3) Conduct third-party analysis for high-volume purchases, 4) Establish contractual terms for material non-conformance. For reference, valid CAS numbers follow the format [###-##-#] with a checksum digit. Major chemical distributors typically reject orders with unregistered numbers unless accompanied by full disclosure documentation. Budget approximately 15-30% additional lead time for verification processes.
Related Manufacturers
- 主营：989111009、连接器
- 主营：512160400、xadrp-40v、kf-183023、989111009、459844343、432496101、04ck-6h-p、351500410、ad-301die、510210600、351500419、786463001、sab-51t-5、533750410、428160412、900590007、522070460、781720411、781720410、877581217、353631060、dvr-06v-s、476421001、351500219、760601010、304902002