Pinacol

CAS 76-09-5HOC(CH3)2C(CH3)2OHChemical Synthesis

Pinacol (CAS: 76-09-5), with the molecular formula HOC(CH3)2C(CH3)2OH and a molecular weight of 118.17 g/mol, is a diol. It is recognised for its utility as a versatile building block in organic synthesis. Pinacol and its derivatives are employed in the preparation of various organic compounds and in protecting group chemistry, finding applications in research laboratories and chemical manufacturing processes.

IUPAC: 2,3-Dimethyl-2,3-butanediol,Tetramethylethylene glycol
Synonyms: 2,3-Dimethyl-2,3-butanediolTetramethylethylene glycol

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Pinacol (HOC(CH3)2C(CH3)2OH) — chemical structure, CAS 76-09-5; Chemistry, fine chemical supplied by Tech Serve Solutions

Building BlocksChemical SynthesisOrganic Building BlocksOxygen CompoundsPolyols

01 /Applications

Organic Synthesis Reagent

Pinacol serves as a key reagent in organic synthesis, particularly in reactions such as the pinacol rearrangement, which is fundamental for creating new carbon-carbon bonds and rearranging molecular structures.

Protecting Group Chemistry

It is used to form pinacol esters or acetals, acting as a protecting group for carbonyl compounds (aldehydes and ketones) or vicinal diols, which can be selectively removed under specific conditions.

Ligand Synthesis

Derivatives of pinacol are valuable precursors for synthesising ligands used in coordination chemistry and catalysis, influencing the stereochemistry and reactivity of metal complexes.

Research and Development

As a fundamental organic building block, pinacol is widely utilised in academic and industrial research laboratories for the development of novel molecules and synthetic methodologies.

02 /Properties

Molecular weight	118.17
Linear formula	HOC(CH3)2C(CH3)2OH
Assay	98%
Boiling point	171-172 °C/739 mmHg(lit.)
Solubility	alcohol: freely solublediethyl ether: freely solublehot water: freely soluble
Melting point	40-43 °C(lit.)

03 /Safety & handling

GHS hazard pictogram: Flammable (GHS02) — Flammable

GHS hazard pictogram: Harmful / irritant (GHS07) — Harmful / irritant

Danger

Hazard statements

H228Flammable solid
H315Causes skin irritation

Precautionary statements

P210Keep away from heat, sparks and open flames. No smoking

Protective equipment	dust mask type N95 (US), Eyeshields, Gloves
Flash point	77 °C / 170.6 °F
Water hazard class (WGK, DE)	2
Hazard codes (EU)	F,Xi
Risk statements (R)	11-38
Safety statements (S)	37

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

04 /Identifiers & registry

CAS number

76-09-5

MDL number

MFCD00004462

PubChem substance

24853219

Beilstein registry

1340501

05 /Quality & supply

Documentation

Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.

Supply & logistics

Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.

06 /Frequently asked questions

What is Pinacol used for?

Pinacol (CAS: 76-09-5) is used as a building block in organic synthesis, in protecting group chemistry for carbonyl compounds and diols, and in the synthesis of ligands for catalysis.

What are the CAS number and formula for Pinacol?

The CAS number for Pinacol is 76-09-5, and its molecular formula is HOC(CH3)2C(CH3)2OH.

What grade and purity does Tech Serve Solutions supply for Pinacol?

Tech Serve Solutions supplies Pinacol with an assay of 98%. This product is suitable for general laboratory and chemical synthesis applications; TSS does not represent it as USP, BP, or EP grade.

What are the primary hazards associated with Pinacol?

Pinacol is a flammable solid (H228) and causes skin irritation (H315). It requires careful handling to avoid ignition sources and skin contact. Always use appropriate personal protective equipment, including a dust mask (type N95), eyeshields, and gloves.

How is Pinacol packed, shipped, or exported?

Pinacol is securely packaged to maintain its integrity during transit and is exported by Tech Serve Solutions in compliance with all relevant international shipping regulations for chemical substances.

How can I request a sample or quote for Pinacol?

To request a sample or a quotation for Pinacol, please contact the Tech Serve Solutions sales team through our website or by phone, providing your specific requirements.