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ChemicalBook >> CAS DataBase List >> tert-Butyl 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole-1-carboxylate

tert-Butyl 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole-1-carboxylate

tert-Butyl 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole-1-carboxylate price.
  • $48 - $1875
  • Product name: tert-Butyl 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole-1-carboxylate
  • CAS: 1256359-17-7
  • MF: C14H23BN2O4
  • MW: 294.15
  • EINECS:
  • MDL Number:MFCD17214286
  • Synonyms:N-Boc-1H-Pyrazole-5-boronic acid, pinacol ester;tert-Butyl 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole-1-carboxylate;1H-Pyrazole-5-boronic acid, pinacol ester, N1-BOC protected;tert-Butyl 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole-1-carboxylate, 1-(tert-Butoxycarbonyl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole;tert-butyl 5-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole-1-carboxylate;tert-Butyl 5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazole-1-carboxylate;tert-Butyl 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl);(1-(TERT-BUTOXYCARBONYL)-1H-PYRAZOL-5-YL)BORONIC ACID PINACOL ESTER
Price23 Properties Safety Information Description
23 prices
Selected condition：
Brand
  • aablocks
  • ACHEMBLOCK
  • AK Scientific
  • American Custom Chemicals Corporation
  • Chemenu
  • Crysdot
  • Matrix Scientific
  • Synthonix
  • TRC
Package
  • 5MG
  • 50mg
  • 250.00mg
  • 250mg
  • 500mg
  • 1.00g
  • 1g
  • 5g
  • 5.00g
  • 10g
  • 25g
  • Manufactureraablocks
  • Product numberAA000O39
  • Product descriptionTert-Butyl 5-(4,4,5,5-Tetramethyl-1,3,2-Dioxaborolan-2-Yl)-1H-Pyrazole-1-Carboxylate 96%
  • Packaging250mg
  • Price$48
  • Updated2026-05-25
  • Buy
  • Manufactureraablocks
  • Product numberAA000O39
  • Product descriptionTert-Butyl 5-(4,4,5,5-Tetramethyl-1,3,2-Dioxaborolan-2-Yl)-1H-Pyrazole-1-Carboxylate 96%
  • Packaging1g
  • Price$119
  • Updated2026-05-25
  • Buy
  • Manufactureraablocks
  • Product numberAA000O39
  • Product descriptionTert-Butyl 5-(4,4,5,5-Tetramethyl-1,3,2-Dioxaborolan-2-Yl)-1H-Pyrazole-1-Carboxylate 96%
  • Packaging5g
  • Price$540
  • Updated2026-05-25
  • Buy
  • Manufactureraablocks
  • Product numberAA000O39
  • Product descriptionTert-Butyl 5-(4,4,5,5-Tetramethyl-1,3,2-Dioxaborolan-2-Yl)-1H-Pyrazole-1-Carboxylate 96%
  • Packaging10g
  • Price$940
  • Updated2026-05-25
  • Buy
  • Manufactureraablocks
  • Product numberAA000O39
  • Product descriptionTert-Butyl 5-(4,4,5,5-Tetramethyl-1,3,2-Dioxaborolan-2-Yl)-1H-Pyrazole-1-Carboxylate 96%
  • Packaging25g
  • Price$1875
  • Updated2026-05-25
  • Buy
  • ManufacturerACHEMBLOCK
  • Product numberL14420
  • Product descriptiontert-Butyl 5-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole-1-carboxylate 97%
  • Packaging5G
  • Price$685
  • Updated2026-05-27
  • Buy
  • ManufacturerACHEMBLOCK
  • Product numberL14420
  • Product descriptiontert-Butyl 5-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole-1-carboxylate 97%
  • Packaging1G
  • Price$190
  • Updated2026-05-27
  • Buy
  • ManufacturerAK Scientific
  • Product numberX0426
  • Product descriptionN-Boc-1H-Pyrazole-5-boronicacidpinacolester
  • Packaging5g
  • Price$1357
  • Updated2021-12-16
  • Buy
  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberBOR0025781
  • Product descriptionTERT-BUTYL-5-(TETRAMETHYL-1,3,2-DIOXABOROLAN-2-YL)-1H-PYRAZOLE-1-CARBOXYLATE 95.00%
  • Packaging5MG
  • Price$452.74
  • Updated2021-12-16
  • Buy
  • ManufacturerChemenu
  • Product numberCM137464
  • Product descriptiontert-butyl 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole-1-carboxylate 95%+
  • Packaging5g
  • Price$586
  • Updated2026-05-26
  • Buy
  • ManufacturerChemenu
  • Product numberCM137464
  • Product descriptiontert-butyl 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole-1-carboxylate 95%+
  • Packaging1g
  • Price$190
  • Updated2026-05-26
  • Buy
  • ManufacturerChemenu
  • Product numberCM137464
  • Product descriptiontert-butyl 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole-1-carboxylate 95%+
  • Packaging250mg
  • Price$70
  • Updated2026-05-26
  • Buy
  • ManufacturerCrysdot
  • Product numberCD11314464
  • Product descriptiontert-Butyl 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole-1-carboxylate 95+%
  • Packaging1g
  • Price$612
  • Updated2026-05-27
  • Buy
  • ManufacturerMatrix Scientific
  • Product number309802
  • Product descriptiontert-Butyl 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole-1-carboxylate
  • Packaging5.00g
  • Price$537
  • Updated2026-05-19
  • Buy
  • ManufacturerMatrix Scientific
  • Product number309802
  • Product descriptiontert-Butyl 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole-1-carboxylate
  • Packaging250.00mg
  • Price$73
  • Updated2026-05-19
  • Buy
  • ManufacturerMatrix Scientific
  • Product number309802
  • Product descriptiontert-Butyl 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole-1-carboxylate
  • Packaging1.00g
  • Price$171
  • Updated2026-05-19
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
aablocks AA000O39 Tert-Butyl 5-(4,4,5,5-Tetramethyl-1,3,2-Dioxaborolan-2-Yl)-1H-Pyrazole-1-Carboxylate 96% 250mg $48 2026-05-25 Buy
aablocks AA000O39 Tert-Butyl 5-(4,4,5,5-Tetramethyl-1,3,2-Dioxaborolan-2-Yl)-1H-Pyrazole-1-Carboxylate 96% 1g $119 2026-05-25 Buy
aablocks AA000O39 Tert-Butyl 5-(4,4,5,5-Tetramethyl-1,3,2-Dioxaborolan-2-Yl)-1H-Pyrazole-1-Carboxylate 96% 5g $540 2026-05-25 Buy
aablocks AA000O39 Tert-Butyl 5-(4,4,5,5-Tetramethyl-1,3,2-Dioxaborolan-2-Yl)-1H-Pyrazole-1-Carboxylate 96% 10g $940 2026-05-25 Buy
aablocks AA000O39 Tert-Butyl 5-(4,4,5,5-Tetramethyl-1,3,2-Dioxaborolan-2-Yl)-1H-Pyrazole-1-Carboxylate 96% 25g $1875 2026-05-25 Buy
ACHEMBLOCK L14420 tert-Butyl 5-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole-1-carboxylate 97% 5G $685 2026-05-27 Buy
ACHEMBLOCK L14420 tert-Butyl 5-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole-1-carboxylate 97% 1G $190 2026-05-27 Buy
AK Scientific X0426 N-Boc-1H-Pyrazole-5-boronicacidpinacolester 5g $1357 2021-12-16 Buy
American Custom Chemicals Corporation BOR0025781 TERT-BUTYL-5-(TETRAMETHYL-1,3,2-DIOXABOROLAN-2-YL)-1H-PYRAZOLE-1-CARBOXYLATE 95.00% 5MG $452.74 2021-12-16 Buy
Chemenu CM137464 tert-butyl 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole-1-carboxylate 95%+ 5g $586 2026-05-26 Buy
Chemenu CM137464 tert-butyl 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole-1-carboxylate 95%+ 1g $190 2026-05-26 Buy
Chemenu CM137464 tert-butyl 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole-1-carboxylate 95%+ 250mg $70 2026-05-26 Buy
Crysdot CD11314464 tert-Butyl 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole-1-carboxylate 95+% 1g $612 2026-05-27 Buy
Matrix Scientific 309802 tert-Butyl 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole-1-carboxylate 5.00g $537 2026-05-19 Buy
Matrix Scientific 309802 tert-Butyl 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole-1-carboxylate 250.00mg $73 2026-05-19 Buy
Matrix Scientific 309802 tert-Butyl 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole-1-carboxylate 1.00g $171 2026-05-19 Buy
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Properties

Boiling point :387.9±34.0 °C(Predicted)
Density :1.09±0.1 g/cm3(Predicted)
storage temp. :Inert atmosphere,Store in freezer, under -20°C
pka :-1.09±0.12(Predicted)
Appearance :Off-white to light yellow Solid

Safety Information

Symbol(GHS): Exclamation Mark (GHS07)
Signal word: Warning
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, P501
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Description

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Suppliers and manufacturers

PharmaBlock Sciences (Nanjing),Inc. Nanjing Chemlin Chemical Co., Ltd Shanghai Sunway Pharmaceutical Technology Co., Ltd 9ding chemical ( Shanghai) Limited Runpharm Technology Limited Shanghai ShiXian Chemical Technology Co., Ltd. Chengdu Aslee Biopharmaceuticals, Inc ShangHai Angti Biotechnology Co., Ltd. Beijing Hechemist Technology CO.,LTD Jinan elephant international trading co., LTD