Metribuzin
Also known as: 4-Amino-6-tert-butyl-3-(methylthio)-1,2,4-triazin-5(4H)-one, 4-Amino-6-(1,1-dimethylethyl)-3-(methylthio)-1,2,4-triazin-5(4H)-one, Sencor, Lexone, Bay 94337, Bayer 6159H, Lexone 4L, Lexone 75DF, Preview, Salute, Sencor 4L, Sencor 75DF, Sencoral, 4-Amino-6-tert-butyl-3-(methylsulfanyl)-1,2,4-triazin-5(4H)-one, 4-Amino-6-(2-methyl-2-propanyl)-3-(methylsulfanyl)-1,2,4-triazin-5(4H)-one, 1,2,4-Triazin-5(4H)-one, 4-amino-6-(1,1-dimethylethyl)-3-(methylthio)-
Metribuzin (CAS 21087-64-9) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C8H14N4OS and a molecular weight of 214.288 g/mol. Key properties include a melting point of 125°C, a boiling point of 312.4±25.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 142.7±23.2 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour, H302 — Harmful if swallowed and H302 — Harmful if swallowed. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 21087-64-9
- Jingsj CID
- J-1323198-7
- Molecular Formula
- C8H14N4OS
- Molecular Weight
- 214.288 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 125°C |
|---|---|
| Boiling Point | 312.4±25.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 142.7±23.2 °C |
| Exact Mass | 214.088837 |
| PSA | 99.10000 |
| LogP | 1.30 |
| Vapor Pressure | 0.0±0.7 mmHg at 25°C |
| Refractive Index | 1.618 |
GHS Safety & Compliance
- H225 — Highly flammable liquid and vapour
- H302 — Harmful if swallowed
- H302 — Harmful if swallowed
- H312 — Harmful in contact with skin
- H332 — Harmful if inhaled
- H312 — Harmful in contact with skin
- H319 — Causes serious eye irritation
- H332 — Harmful if inhaled
Activity & Biological Data
| Additional Information | [1]. Whitney Pilcher, et al. Genome-wide Microarray Analysis Leads to Identification of Genes in Response to Herbicide, Metribuzin in Wheat Leaves. PLoS One. 2017 Dec 11;12(12):e0189639. |
|---|
Customs & Trade Information
| HS Code | 2933699014 |
|---|---|
| Summary | 2933699014 4-amino-6-(tert-butyl)-3-(methylthio)-1,2,4-triazin-5(4h)-one。supervision conditions:s(import or export registration certificate for pesticides)。VAT:17.0%。tax rebate rate:9.0%。MFN tarrif:6.5%。general tariff:20.0% |
Frequently Asked Questions
What is the CAS number of Metribuzin?
The CAS number of Metribuzin is 21087-64-9.
What are the molecular formula and molecular weight of Metribuzin?
Metribuzin has molecular formula C8H14N4OS and molecular weight 214.288 g/mol.
Is Metribuzin hazardous?
Metribuzin has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H302 — Harmful if swallowed; H302 — Harmful if swallowed.
What are the upstream and downstream products of Metribuzin?
For Metribuzin, Upstream Products: Methyl chlorosulfonate, 4-Amino-6-(tert-butyl)-3-mercapto-1,2,4-triazin-5(4H)-one, iodomethane; Downstream Products: Ethiozin, Metribuzin-desamino, Metribuzin-diketo.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Metribuzin (CAS 21087-64-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1323198-7 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.