628-21-7 1,4-Diiodobutane Butane, 1,4-diiodo- 4-01-00-00276 (Beilstein Handbook Reference) BRN 1098276 1,4-Diodobutane EINECS 211-032-1 NSC 31721 Tetramethylene diiodide Tetramethylene iodide CAS 628-21-7

Purity 97%+In StockPharmaceutical Standards
CAS No.628-21-7
Molecular FormulaC4H8I2
Molecular Weight309.92 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

628-21-7 1,4-Diiodobutane Butane, 1,4-diiodo- 4-01-00-00276 (Beilstein Handbook Reference) BRN 1098276 1,4-Diodobutane EINECS 211-032-1 NSC 31721 Tetramethylene diiodide Tetramethylene iodide CAS 628-21-7 chemical structure

Description

As a certified reference material (CRM), 628-21-7 1,4-Diiodobutane Butane, 1,4-diiodo- 4-01-00-00276 (Beilstein Handbook Reference) BRN 1098276 1,4-Diodobutane EINECS 211-032-1 NSC 31721 Tetramethylene diiodide Tetramethylene iodide meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

628-21-7 1,4-Diiodobutane Butane, 1,4-diiodo- 4-01-00-00276 (Beilstein Handbook Reference) BRN 1098276 1,4-Diodobutane EINECS 211-032-1 NSC 31721 Tetramethylene diiodide Tetramethylene iodide (CAS 628-21-7) is a high-purity analytical reference standard with the molecular formula C4H8I2 and a molecular weight of 309.92 g/mol.

Structurally, 628-21-7 1,4-Diiodobutane Butane, 1,4-diiodo- 4-01-00-00276 (Beilstein Handbook Reference) BRN 1098276 1,4-Diodobutane EINECS 211-032-1 NSC 31721 Tetramethylene diiodide Tetramethylene iodide (C4H8I2) contains iodine substitution. The molecule exhibits a degree of unsaturation (DBE) of 0.0, corresponding to approximately 0 ring(s) or double-bond equivalent(s). With a molecular weight of 309.92 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

Physical & Chemical Properties

Molecular FormulaC4H8I2
Molecular Weight309.92 g/mol
Purity97%+
StorageStore at room temperature
Solubility (reference)Soluble in methanol, acetonitrile, DMSO
StabilityStable under recommended storage conditions
Degree of Unsaturation (DBE)0.0
CAS Registry Year (est.)1957
Halogen ContentI-containing

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