3-Hydroxy-3-methylbutyronitrile
3-Hydroxy-3-methylbutyronitrile (CAS: 13635-04-6, HOC(CH3)2CH2CN) is a versatile organic building block with a molecular weight of 99.13 g/mol. This beta-hydroxy nitrile serves as a key intermediate in chemical synthesis, particularly within organic chemistry research and development. Its bifunctional nature, featuring both hydroxyl and nitrile groups, allows for diverse synthetic transformations, making it valuable for constructing more complex molecules.
- IUPAC
- β-Hydroxyisovaleronitrile
- Synonyms
- β-Hydroxyisovaleronitrile

Organic Synthesis Intermediate
3-Hydroxy-3-methylbutyronitrile is employed as a precursor in the synthesis of various organic compounds. Its reactive functional groups enable participation in a range of chemical reactions, facilitating the construction of target molecules in academic and industrial research settings.
Building Block for Complex Molecules
This compound acts as a foundational building block in multistep syntheses. The presence of both a tertiary alcohol and a nitrile moiety provides synthetic handles for elaboration into diverse chemical structures, including pharmaceuticals and specialty chemicals.
Research and Development Reagent
Utilised in R&D laboratories for exploring novel synthetic routes and creating new chemical entities. Its specific structure offers unique reactivity profiles for chemists designing innovative molecular architectures.
| Molecular weight | 99.13 |
|---|---|
| Linear formula | HOC(CH3)2CH2CN |
| Assay | ≥97.0% (GC) |
| Boiling point | 114-116 °C/30 mmHg(lit.) |
| Density | 0.959 g/mL at 20 °C(lit.) |
| Refractive index | n20/D 1.430 |
| Storage temperature | 2-8°C |

Hazard statements
- H302Harmful if swallowed
- H332Harmful if inhaled
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 97 °C / 206.6 °F |
| Transport (UN / ADR) | UN 3276 6.1 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 20/22 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
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.
What is 3-Hydroxy-3-methylbutyronitrile used for?
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3-Hydroxy-3-methylbutyronitrile is primarily used as an intermediate in organic synthesis and as a building block for constructing more complex molecules in research and development.
What is the CAS number and molecular formula for 3-Hydroxy-3-methylbutyronitrile?
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The CAS number is 13635-04-6 and the molecular formula is HOC(CH3)2CH2CN.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3-Hydroxy-3-methylbutyronitrile with an assay of ≥97.0% (GC). We do not represent this product as USP, BP, EP, or other pharmacopoeia grades.
How should 3-Hydroxy-3-methylbutyronitrile be handled?
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Handling requires appropriate personal protective equipment, including eyeshields, face shields, gloves, and a suitable respirator, as it is harmful if swallowed and inhaled (H302-H332).
How is 3-Hydroxy-3-methylbutyronitrile shipped and exported?
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3-Hydroxy-3-methylbutyronitrile is shipped and exported according to international regulations, classified under UN 3276, Hazard Class 6.1, Packing Group III.
How can I request a sample or quote for 3-Hydroxy-3-methylbutyronitrile?
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To request a sample or quote, please contact our sales department via the website or provide your inquiry details through our standard contact channels.
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