2,2-Dimethyl-1,3-propanediol, 99%

Description

CAS: 126-30-7 | C5H12O2 | 104.15 g/mol

Used for protection of carbonyl groups as 4,4-dimethyl-1,3-dioxanes, often preferred to the more usual 1,3-dioxolanes due to easier separation and greater stability, for protection of carbonyl group of 4-bromo-2-propanone using p-toluenesulfonic acid in the presence of triethyl orthoformate. It is used in the synthesis of polyesters, paints, lubricants, and plasticizers.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
Used for protection of carbonyl groups as 4,4-dimethyl-1,3-dioxanes, often preferred to the more usual 1,3-dioxolanes due to easier separation and greater stability, for protection of carbonyl group of 4-bromo-2-propanone using p-toluenesulfonic acid in the presence of triethyl orthoformate. It is used in the synthesis of polyesters, paints, lubricants, and plasticizers.

Solubility
Soluble in water.

Notes
Hygroscopic. Incompatible with oxidizing agents, water/moisture.

Specifications

Chemical Identifiers

• CAS: 126-30-7
• Molecular Formula: C5H12O2
• Molecular Weight (g/mol): 104.15
• MDL Number: MFCD00004685
• InChI Key: SLCVBVWXLSEKPL-UHFFFAOYSA-N
• Synonym: neopentyl glycol, 2,2-dimethyl-1,3-propanediol, dimethylolpropane, neopentylene glycol, neopentanediol, neopentylglycol, 1,3-propanediol, 2,2-dimethyl, neol, hydroxypivalyl alcohol, dimethyltrimethylene glycol
• PubChem CID: 31344
• IUPAC Name: 2,2-dimethylpropane-1,3-diol
• SMILES: CC(C)(CO)CO

• Melting Point: 125°C to 130°C
• Density: 1.042
• Boiling Point: 210°C to 212°C
• Flash Point: 103°C (217°F)
• Odor: Mild
• Quantity: 250 g
• Beilstein: 605291
• Sensitivity: Hygroscopic
• Merck Index: 14,6458
• Solubility Information: Soluble in water.
• Formula Weight: 104.15
• Percent Purity: 99%
• Chemical Name or Material: 2,2-Dimethyl-1,3-propanediol

Safety and Handling

Hazard Category	H318-H500
Hazard Statement	GHS H Statement H318 Causes serious eye damage.
Precautionary Statement	P280-P305+P351+P338-P310
EINECSNumber	204-781-0
RTECSNumber	TY5775000
TSCA	Yes
Recommended Storage	Ambient temperatures

SDS

RUO – Research Use Only