4-(Methylthio)benzonitrile
4-(Methylthio)benzonitrile (CAS: 21382-98-9; Formula: CH3SC6H4CN; Molar Mass: 149.21 g/mol) is a versatile organic compound. It serves as a key building block in chemical synthesis, particularly within the realm of organic chemistry. This nitrile derivative finds application in the preparation of other important chemical entities, contributing to advancements in material science and pharmaceutical research. Tech Serve Solutions supplies this compound with a high purity of 98%.

Precursor for Thiol Compounds
4-(Methylthio)benzonitrile has been documented for use in the synthesis of 4-cyanobenzenethiol. This transformation highlights its utility in preparing sulfur-containing aromatic compounds.
Organic Synthesis Intermediate
As a molecule featuring both a nitrile and a methylthio group, it functions as a valuable intermediate in multi-step organic syntheses. Its structure allows for diverse chemical modifications.
Building Block for Novel Materials
The compound's unique functional groups make it suitable for incorporation into more complex molecular architectures, potentially leading to the development of new materials with specific electronic or chemical properties.
| Molecular weight | 149.21 |
|---|---|
| Linear formula | CH3SC6H4CN |
| Assay | 98% |
| Boiling point | 272 °C(lit.) |
| Application | 4-(Methylthio)benzonitrile was used in the preparation of 4-cyanobenzenethiol1. |
| Melting point | 61-63 °C(lit.) |

Hazard statements
- H302Harmful if swallowed
- H312Harmful in contact with skin
- H315Causes skin irritation
- H319Causes serious eye irritation
- H332Harmful if inhaled
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 20/21/22-36/37/38 |
| Safety statements (S) | 26-36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
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 4-(Methylthio)benzonitrile used for?
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4-(Methylthio)benzonitrile is primarily used as a building block in organic synthesis, notably in the preparation of compounds such as 4-cyanobenzenethiol.
What is the CAS number and molecular formula for 4-(Methylthio)benzonitrile?
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The CAS number for 4-(Methylthio)benzonitrile is 21382-98-9, and its molecular formula is CH3SC6H4CN.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-(Methylthio)benzonitrile with a minimum purity of 98%. This product is not represented as USP, BP, or EP grade.
How should 4-(Methylthio)benzonitrile be handled safely?
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Handle with appropriate personal protective equipment, including a dust mask (type N95 or equivalent), eyeshields, and gloves. Ensure good ventilation, as the compound may cause respiratory irritation (H335), and is harmful if swallowed (H302), in contact with skin (H312), and if inhaled (H332). It also causes skin irritation (H315) and serious eye irritation (H319).
Is 4-(Methylthio)benzonitrile a controlled substance?
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The provided data does not indicate that 4-(Methylthio)benzonitrile is a controlled substance.
How is 4-(Methylthio)benzonitrile packed and shipped?
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Tech Serve Solutions exports fine chemicals globally. Specific packaging details and shipping information will be provided upon inquiry.
How can I request a quote or sample for 4-(Methylthio)benzonitrile?
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To request a quote or a sample of 4-(Methylthio)benzonitrile, please contact our sales team through the website or by phone.
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