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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
Molecular Weight:
208
MDL Number:
MFCD11109327
MOL File:
34091-51-5.mol
MSDS File:
SDS
Last updated:2025-07-24 18:13:45
Product description Number Pack Size Price
5-Iodo-1-methyl-1H-pyrazole 97% 756334 1g $115
5-Iodo-1-methylpyrazole >98.0%(GC) I0963 1g $115
5-Iodo-1-methylpyrazole >98.0%(GC) I0963 5g $340
5-Iodo-1-methyl-1H-pyrazole I709043 50mg $45
5-Iodo-1-methyl-1H-pyrazole I709043 100mg $60
More product size

5-IODO-1-METHYL-1H-PYRAZOLE Properties

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
UNSPSC Code 12352100
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictogramsGHS hazard pictograms
GHS05,GHS07
Signal word  Danger
Hazard statements  H315-H318-H335
Precautionary statements  P280a-P304+P340-P405-P501a-P261-P280-P305+P351+P338
Hazard Codes  Xi
Risk Statements  37/38-41
Safety Statements  26-39
WGK Germany  3
HS Code  2933199090
NFPA 704
1
2 0

5-IODO-1-METHYL-1H-PYRAZOLE price More Price(25)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 756334 5-Iodo-1-methyl-1H-pyrazole 97% 34091-51-5 1g $115 2023-06-20 Buy
TCI Chemical I0963 5-Iodo-1-methylpyrazole >98.0%(GC) 34091-51-5 1g $115 2025-07-31 Buy
TCI Chemical I0963 5-Iodo-1-methylpyrazole >98.0%(GC) 34091-51-5 5g $340 2025-07-31 Buy
TRC I709043 5-Iodo-1-methyl-1H-pyrazole 34091-51-5 50mg $45 2021-12-16 Buy
TRC I709043 5-Iodo-1-methyl-1H-pyrazole 34091-51-5 100mg $60 2021-12-16 Buy
Product number Packaging Price Buy
756334 1g $115 Buy
I0963 1g $115 Buy
I0963 5g $340 Buy
I709043 50mg $45 Buy
I709043 100mg $60 Buy

5-IODO-1-METHYL-1H-PYRAZOLE Chemical Properties,Uses,Production

Synthesis

1-Methylpyrazole

930-36-9

5-IODO-1-METHYL-1H-PYRAZOLE

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

930-36-9
34091-51-5
Synthesis of 5-IODO-1-METHYL-1H-PYRAZOLE from 1-Methylpyrazole

5-IODO-1-METHYL-1H-PYRAZOLE Preparation Products And Raw materials

Raw materials

Preparation Products

Global( 97)Suppliers
Supplier Tel Email Country ProdList Advantage
Shaanxi Dideu Medichem Co. Ltd
+86-029-81138252 +86-173 9270 1263 1057@dideu.com China 3999 58
Henan Tianfu Chemical Co.,Ltd.
+86-0371-55170693 +86-19937530512 info@tianfuchem.com China 21618 55
career henan chemical co
+86-0371-86658258 +8613203830695 sales@coreychem.com China 29850 58
Accela ChemBio Inc.
+1-858-6993322 info@accelachem.com United States 21193 58
Alchem Pharmtech,Inc.
8485655694 sales@alchempharmtech.com United States 63687 58
Guangzhou Yuheng Pharmaceutical Technology Co., Ltd
+8613580539051 joe@yuhengpharm.com CHINA 21142 58
Neostar United (Changzhou) Industrial Co., Ltd.
+86-0519-85551759 +8613506123987 marketing1@neostarunited.com China 8830 58
Hefei TNJ Chemical Industry Co.,Ltd.
+86-0551-65418671 +8618949823763 sales@tnjchem.com China 34563 58
Jinjiangchem Corporation
512-50133713 sales@jinjiangchem.com CHINA 1072 58
Dayang Chem (Hangzhou) Co.,Ltd.
+86-0571-88938639 +8617705817739 info@dycnchem.com China 52846 58

View Lastest Price from 5-IODO-1-METHYL-1H-PYRAZOLE manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
5-Iodo-1-Methyl-1H-pyrazole pictures 2024-08-05 5-Iodo-1-Methyl-1H-pyrazole
34091-51-5
US $1.00 / Kg 1Kg 98% 20T Shaanxi Dideu Medichem Co. Ltd
5-IODO-1-METHYL-1H-PYRAZOLE pictures 2019-07-06 5-IODO-1-METHYL-1H-PYRAZOLE
34091-51-5
US $1.00 / kg 1kg 98% 200KG Career Henan Chemical Co

5-IODO-1-METHYL-1H-PYRAZOLE Spectrum

5-IODO-1-METHYL-1H-PYRAZOLE 1-Methyl-5-iodopyrazole 5-Iodo-1-methylpyrazole 5-Iodo-1-methylpyrazole> 1H-Pyrazole, 5-iodo-1-methyl- 5-Iodo-1-methyl-1H-pyrazole,97% 5-Iodo-1-methyl-1H-pyrazole 34091-51-5