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3-Methyl-2-buten-1-ol

CAS 556-82-1(CH3)2C=CHCH2OHChemical Synthesis

3-Methyl-2-buten-1-ol (CAS 556-82-1) is an acyclic unsaturated alcohol with the linear formula (CH3)2C=CHCH2OH and a molecular weight of 86.13 g/mol. It serves as a valuable building block in organic synthesis, particularly in the preparation of complex molecules. Its applications span chemical synthesis and cell biology research, making it a key reagent for advanced chemical development.

IUPAC
3,3-Dimethylallyl alcohol,Prenol
Synonyms
3,3-Dimethylallyl alcoholPrenol
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3-Methyl-2-buten-1-ol ((CH3)2C=CHCH2OH) — chemical structure, CAS 556-82-1; Chemistry, fine chemical supplied by Tech Serve Solutions
AcyclicAlkenesBuilding BlocksCell BiologyChemical SynthesisNutrition ResearchOrganic Building Blocks
01 /Applications

Organic Synthesis Building Block

3-Methyl-2-buten-1-ol is utilised as a crucial starting material in the synthesis of various organic compounds. Its unsaturated alcohol functionality allows for diverse chemical transformations, making it valuable for constructing complex molecular architectures.

Asymmetric Synthesis

This compound was employed as a reagent in the asymmetric total syntheses of umbelactone isomers. Specifically, it played a role in reactions employing Sharpless asymmetric epoxidation, enabling stereoselective synthesis.

Chemical Research and Development

As a versatile chemical intermediate, 3-Methyl-2-buten-1-ol is utilised in research laboratories for developing new synthetic pathways and exploring novel chemical entities. Its properties make it suitable for various chemical synthesis applications.

02 /Properties
Molecular weight86.13
Linear formula(CH3)2C=CHCH2OH
Assay≥98.0% (GC)
Boiling point140 °C(lit.)
Density0.848 g/mL at 25 °C(lit.)
Refractive indexn20/D 1.443(lit.)n20/D 1.443
Vapour pressure1.4 mmHg (20 °C)
Application3-Methyl-2-buten-1-ol was used as starting reagent during asymmetric total syntheses of (R)-(+)- and (S)-(-)-umbelactone via Sharpless asymmetric epoxidation reaction1.
03 /Safety & handling
GHS hazard pictogram: Flammable (GHS02)
Flammable
GHS hazard pictogram: Harmful / irritant (GHS07)
Harmful / irritant
Warning

Hazard statements

  • H226Flammable liquid and vapour
  • H302Harmful if swallowed
  • H315Causes skin irritation
  • H319Causes serious eye irritation
  • H335May cause respiratory irritation

Precautionary statements

  • P261Avoid breathing dust, fume, gas or vapours
  • P305IF IN EYES
Protective equipmentEyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter
Flash point43 °C / 109.4 °F
Transport (UN / ADR)UN 1987C 3 / PGIII
Water hazard class (WGK, DE)1
Hazard codes (EU)Xn
Risk statements (R)10-22-36/37/38
Safety statements (S)26-36

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

04 /Identifiers & registry
CAS number
556-82-1
MDL number
MFCD00002916
PubChem substance
24849980
Beilstein registry
1633479
05 /Additional specifications
Expl Lim16.3 %
06 /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.

07 /Frequently asked questions

What is 3-Methyl-2-buten-1-ol primarily used for?

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3-Methyl-2-buten-1-ol is primarily used as a building block in organic synthesis and for asymmetric synthesis, notably in the preparation of complex molecules like umbelactones.

What are the CAS number and chemical formula for 3-Methyl-2-buten-1-ol?

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The CAS number for 3-Methyl-2-buten-1-ol is 556-82-1, and its linear chemical formula is (CH3)2C=CHCH2OH.

What grade and purity does Tech Serve Solutions supply for 3-Methyl-2-buten-1-ol?

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Tech Serve Solutions supplies 3-Methyl-2-buten-1-ol with a purity of ≥98.0% (GC). We do not represent this product as USP, EP, or BP grade.

How should 3-Methyl-2-buten-1-ol be handled safely?

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3-Methyl-2-buten-1-ol is a flammable liquid and vapour (H226), harmful if swallowed (H302), and causes skin (H315), serious eye (H319), and respiratory irritation (H335). Ensure adequate ventilation, wear appropriate personal protective equipment including eyeshields, face shield, and suitable gloves, and avoid ignition sources.

How is 3-Methyl-2-buten-1-ol packed and shipped?

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3-Methyl-2-buten-1-ol is classified as UN 1987, Class 3, Packing Group III, indicating it is shipped as a flammable liquid in appropriate packaging according to international regulations.

How can I request a quote or sample for 3-Methyl-2-buten-1-ol?

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To request a quote or sample of 3-Methyl-2-buten-1-ol, please contact our sales team through the TSS website or your designated account manager.

Need 3-Methyl-2-buten-1-ol in a specific grade or volume?