2-Methyl-2-propyl-1,3-propanediol , ≥98.0%(GC) , 78-26-2

Synonym(s):
2,2-Bis(hydroxymethyl)pentane

CAS NO.：78-26-2

Empirical Formula: C7H16O2

Molecular Weight: 132.2

MDL number: MFCD00004696

EINECS: 201-099-5

PRODUCT Properties

• Melting point: 57-59 °C (lit.)
• Boiling point: 230 °C/753 mmHg (lit.)
• Density: 0.9744 (rough estimate)
• refractive index: 1.4474 (estimate)
• Flash point: >230 °F
• storage temp.: Refrigerator
• solubility: Chloroform (Slightly), Methanol (Slightly)
• form: Solid
• pka: 14.57±0.10(Predicted)
• color: White
• BRN: 1734432

Description and Uses

2-Methyl-2-propyl-1,3-propanediol is produced either by the salt-free procedure based on aldol addition followed by hydrogenation or by the classical combination of hydroxymethylation and Cannizzaro-type disproportionation with formaldehyde. The production costs are considerably higher than for neopentyl glycol, because the synthesis of 2-methylpentanal from propanal requires two additional steps: aldol condensation and hydrogenation.

An intermediate in the synthesis of Carisoprodol.

Safety

• Symbol(GHS): GHS07
• Signal word: Warning
• Hazard statements: H302
• Precautionary statements: P264-P270-P301+P312+P330-P501
• Hazard Codes: Xn
• Risk Statements: 36-22
• Safety Statements: 22-24/25-39-26
• WGK Germany: 1
• RTECS: TY9386000
• HS Code: 2905399590