5-IODO-1-METHYL-1H-PYRAZOLE
- Product Name
- 5-IODO-1-METHYL-1H-PYRAZOLE
- CAS No.
- 34091-51-5
- Chemical Name
- 5-IODO-1-METHYL-1H-PYRAZOLE
- Synonyms
- 5-Iodo-1-methylpyrazole;1-Methyl-5-iodopyrazole;5-Iodo-1-methylpyrazole>5-IODO-1-METHYL-1H-PYRAZOLE;1H-Pyrazole, 5-iodo-1-methyl-;5-Iodo-1-methyl-1H-pyrazole,97%;5-Iodo-1-methyl-1H-pyrazole
- CBNumber
- CB31486886
- Molecular Formula
- C4H5IN2
- Formula Weight
- 208
- MOL File
- 34091-51-5.mol
5-IODO-1-METHYL-1H-PYRAZOLE Property
- Melting point:
- 80℃
- Boiling point:
- 226.9±13.0℃ (760 Torr)
- Density
- 2.07±0.1 g/cm3 (20 ºC 760 Torr)
- Flash point:
- 91.1±19.8℃
- storage temp.
- 2-8°C
- solubility
- soluble in Methanol
- form
- solid
- pka
- 1.02±0.10(Predicted)
- Appearance
- Off-white to light yellow Solid
- Sensitive
- Moisture & Light Sensitive
- InChIKey
- RJYWUQWCLZYCTI-UHFFFAOYSA-N
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Danger
- Hazard statements
-
H315Causes skin irritation
H318Causes serious eye damage
H335May cause respiratory irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P405Store locked up.
N-Bromosuccinimide Price
- Product number
- 756334
- Product name
- 5-Iodo-1-methyl-1H-pyrazole
- Purity
- 97%
- Packaging
- 1g
- Price
- $115
- Updated
- 2023/06/20
- Product number
- I0963
- Product name
- 5-Iodo-1-methylpyrazole
- Purity
- >98.0%(GC)
- Packaging
- 1g
- Price
- $115
- Updated
- 2025/07/31
- Product number
- I0963
- Product name
- 5-Iodo-1-methylpyrazole
- Purity
- >98.0%(GC)
- Packaging
- 5g
- Price
- $340
- Updated
- 2025/07/31
- Product number
- I709043
- Product name
- 5-Iodo-1-methyl-1H-pyrazole
- Packaging
- 50mg
- Price
- $45
- Updated
- 2021/12/16
- Product number
- I709043
- Product name
- 5-Iodo-1-methyl-1H-pyrazole
- Packaging
- 100mg
- Price
- $60
- Updated
- 2021/12/16
5-IODO-1-METHYL-1H-PYRAZOLE Chemical Properties,Usage,Production
Synthesis
930-36-9
34091-51-5
Under nitrogen protection, 1-methylpyrazole (6.00 g) was dissolved in tetrahydrofuran (120 mL) and n-butyllithium (39.0 mL, 2.6 M hexane solution) was slowly added dropwise. After the dropwise addition, the reaction solution was stirred for 30 minutes. Subsequently, the reaction solution was cooled in an ice bath and stirred for 1 hour. Next, the temperature of the reaction solution was lowered to -78°C and a tetrahydrofuran (50 mL) solution of iodine (28.0 g) was slowly added dropwise. After the dropwise addition was completed, the reaction solution continued to be stirred at -78 °C for 1 hour. Afterwards, the reaction solution was allowed to slowly warm to room temperature and stirred overnight. Upon completion of the reaction, 30% aqueous sodium thiosulfate was added to the reaction solution to quench the reaction, followed by distillation under reduced pressure to remove the solvent. The residue was extracted with ethyl acetate and the organic layer was washed with saturated brine and dried over anhydrous sodium sulfate. The dried organic layer was concentrated under reduced pressure and the solid obtained was washed with n-hexane to give the final 5-iodo-1-methyl-1H-pyrazole (11.4 g) in the form of a maroon solid. The product was characterized by 1H NMR (200 MHz, chloroform-d): δppm 3.94 (s, 3H), 6.43 (d, J = 2.20 Hz, 1H), 7.47 (d, J = 1.76 Hz, 1H); mass spectrum (ESI pos.) m/z 209 [M + H]+.
References
[1] Chemical Communications, 2014, vol. 50, # 85, p. 12859 - 12862
[2] Patent: WO2016/109706, 2016, A1. Location in patent: Page/Page column 214; 215
[3] Tetrahedron Letters, 2011, vol. 52, # 36, p. 4590 - 4594
[4] Journal of Organic Chemistry, 1984, vol. 49, # 24, p. 4687 - 4695
[5] Patent: US2013/123500, 2013, A1. Location in patent: Paragraph 0225; 0226
5-IODO-1-METHYL-1H-PYRAZOLE Preparation Products And Raw materials
Raw materials
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View Lastest Price from 5-IODO-1-METHYL-1H-PYRAZOLE manufacturers
- Product
- 5-Iodo-1-Methyl-1H-pyrazole 34091-51-5
- Price
- US $1.00/Kg
- Min. Order
- 1Kg
- Purity
- 98%
- Supply Ability
- 20T
- Release date
- 2024-08-02
- Product
- 5-IODO-1-METHYL-1H-PYRAZOLE 34091-51-5
- Price
- US $1.00/kg
- Min. Order
- 1kg
- Purity
- 98%
- Supply Ability
- 200KG
- Release date
- 2018-12-19