dibutylamine

Di-n-butylamine target

PubChem identifies dibutylamine as the C8H19N structure CCCCNCCCC, with CAS 111-92-2 and CID 8148; use this as the proposed registry interpretation pending registry provenance confirmation. [PubChem](https://pubchem.ncbi.nlm.nih.gov/compound/8148)

1. Does the registry's originating record identify the nitrogen bearing two straight-chain butyl groups? provenance
2. What structural evidence distinguishes the sample from branched dibutylamine isomers? definition

Free-base and product boundary

A record must distinguish dibutylamine molecular identity from protonated derivatives and from commercial materials containing it.

1. Does the supplied material represent neutral dibutylamine, a salt with a named counterion, or a mixture? boundary
2. Which verified EC and inventory records refer specifically to the proposed free-base identity? provenance

Usable dibutylamine content

Record assay method, reporting basis and lot evidence before calculating active dibutylamine content.

1. Is the reported assay mass purity, chromatographic area purity or a titration-based amine content? measurement
2. Could other basic constituents contribute to the reported titration result? boundary

Application-specific impurity acceptance

Treat water, other amines and residual solvents as analytes to assess where relevant, without assuming they occur in every lot.

1. What are the measured water content and relevant impurity concentrations, including detection limits? measurement
2. Which impurity thresholds determine whether this lot is suitable for its intended use? action

Condition-qualified phase

Maintain melting or freezing and boiling data separately from the observed state of a particular sample.

1. What phase is observed at the sample's recorded temperature, pressure and composition? measurement
2. Which sourced melting and boiling measurements apply, and what pressure and purity were reported? provenance

Condition-matched property use

Use density and vapour-pressure data at relevant temperatures; qualify aqueous behaviour by pH and chemical form.

1. Which density and vapour-pressure measurements cover the proposed operating temperature? measurement
2. Does an aqueous solubility value describe the neutral free base or include protonation under the measurement conditions? boundary

Available free base

Assess protonation and intended nitrogen-centred reactivity using the actual solvent and reactants.

1. What solvent, acid content and equilibrium evidence determine the available neutral dibutylamine fraction? measurement
2. Does the proposed use depend on basicity, nucleophilic reaction or another experimentally supported role? action

Secondary-amine transformation screen

Require substance-specific evidence for incompatible contacts and evaluate whether the intended context warrants investigation of N-nitrosodibutylamine formation.

1. Which documented incompatibilities apply to the actual acids, oxidants or other chemicals present? provenance
2. Are nitrosating conditions plausible, and what evidence determines whether nitrosamine testing or controls are needed? action

Applicable hazard record

Record current classification evidence and method-qualified flash-point data for the relevant substance or supplied composition.

1. Which current authoritative classification and supplier safety data apply to this identity, concentration and jurisdiction? provenance
2. What flash-point method and value support assessment of the proposed temperature and ignition-source conditions? measurement

Evidence-based handling decision

Keep occupational exposure limits, recommended guidelines and transport or waste classifications distinct, with explicit applicability.

1. Which dibutylamine exposure criteria apply locally, with what averaging periods, route annotations and legal status? provenance
2. What verified controls and transport or waste determinations are required for this quantity, composition and intended disposition? action

Check these first

Recalled without web access and unsourced; every item is a lead to verify.

1. Which of these check these first hold for the sense of dibutylamine this model covers, and on what evidence? provenance

Identifiers and schemes

Recalled without web access and unsourced; every item is a lead to verify.

1. Which of these identifiers and schemes hold for the sense of dibutylamine this model covers, and on what evidence? provenance

Standards and regulation

Recalled without web access and unsourced; every item is a lead to verify.

1. Which of these standards and regulation hold for the sense of dibutylamine this model covers, and on what evidence? provenance

Real-world use

Recalled without web access and unsourced; every item is a lead to verify.

1. Which of these real-world use hold for the sense of dibutylamine this model covers, and on what evidence? provenance

Typical measurements

Recalled without web access and unsourced; every item is a lead to verify.

1. Which of these typical measurements hold for the sense of dibutylamine this model covers, and on what evidence? provenance

Failure modes and hazards

Recalled without web access and unsourced; every item is a lead to verify.

1. Which of these failure modes and hazards hold for the sense of dibutylamine this model covers, and on what evidence? provenance

Regional variation

Recalled without web access and unsourced; every item is a lead to verify.

1. Which of these regional variation hold for the sense of dibutylamine this model covers, and on what evidence? provenance

Neighbouring kinds and how to tell them apart

Recalled without web access and unsourced; every item is a lead to verify.

1. Which of these neighbouring kinds and how to tell them apart hold for the sense of dibutylamine this model covers, and on what evidence? provenance