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ChemicalBook >> CAS DataBase List >> 1-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3-(trifluoromethyl)-1H-pyrazole

1-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3-(trifluoromethyl)-1H-pyrazole

$11 - $3417
Product name: 1-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3-(trifluoromethyl)-1H-pyrazole
CAS: 1218790-53-4
MF: C11H16BF3N2O2
MW: 276.06
EINECS:
MDL Number:MFCD11867868
Synonyms:1-methyl-4-(tetramethyl-1,3,2-dioxaborolan-2-yl)-3-(trifluoromethyl)-1H-pyrazole;1-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3-(trifluoromethyl)-1H-pyrazole;1-Methyl-3-trifluoromethyl-1H-pyrazole-4-boronic acid pinacol ester;1-Methyl-3-trifluoromethyl-1H-pyrazole-4-boronic acid pinacol ester >=97%;1H-Pyrazole, 1-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3-(trifluoromethyl)-;1-Methyl-3-(trifluoromethyl)-4-pyrazoleboronic Acid Pinacol Ester;1-Methyl-3-trifluoromethyl-1H-pyrazole-4-boronic acid pinacol ester;1-methyl-4-(tetramethyl-1,3,2-dioxaborolan-2-yl)-3-(trifluoromethyl)-1H-pyrazole - [M17640]

Price39 Properties Safety Information Description

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aablocks
ACHEMBLOCK
AK Scientific
Alichem
Ambeed
American Custom Chemicals Corporation
Chemenu
Crysdot
Sigma-Aldrich
Synthonix
TRC

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10mg
250mg
1g
5g
10g
25G

Manufactureraablocks
Product numberAA00166Z
Product description1-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3-(trifluoromethyl)-1H-pyrazole 95%
Packaging250mg
Price$11
Updated2026-05-28
Buy

Manufactureraablocks
Product numberAA00166Z
Product description1-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3-(trifluoromethyl)-1H-pyrazole 95%
Packaging1g
Price$17
Updated2026-05-28
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Manufactureraablocks
Product numberAA00166Z
Product description1-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3-(trifluoromethyl)-1H-pyrazole 95%
Packaging5g
Price$64
Updated2026-05-28
Buy

Manufactureraablocks
Product numberAA00166Z
Product description1-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3-(trifluoromethyl)-1H-pyrazole 97%
Packaging10g
Price$111
Updated2026-05-28
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ManufacturerACHEMBLOCK
Product numberL14163
Product description1-Methyl-4-(tetramethyl-1,3,2-dioxaborolan-2-yl)-3-(trifluoromethyl)-1H-pyrazole 97%
Packaging1G
Price$185
Updated2021-12-16
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ManufacturerACHEMBLOCK
Product numberL14163
Product description1-Methyl-4-(tetramethyl-1,3,2-dioxaborolan-2-yl)-3-(trifluoromethyl)-1H-pyrazole 97%
Packaging250MG
Price$95
Updated2021-12-16
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ManufacturerACHEMBLOCK
Product numberL14163
Product description1-Methyl-4-(tetramethyl-1,3,2-dioxaborolan-2-yl)-3-(trifluoromethyl)-1H-pyrazole 97%
Packaging5G
Price$100
Updated2026-05-25
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ManufacturerACHEMBLOCK
Product numberL14163
Product description1-Methyl-4-(tetramethyl-1,3,2-dioxaborolan-2-yl)-3-(trifluoromethyl)-1H-pyrazole 97%
Packaging5G
Price$100
Updated2026-05-27
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ManufacturerACHEMBLOCK
Product numberL14163
Product description1-Methyl-4-(tetramethyl-1,3,2-dioxaborolan-2-yl)-3-(trifluoromethyl)-1H-pyrazole 97%
Packaging25G
Price$425
Updated2026-05-25
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ManufacturerACHEMBLOCK
Product numberL14163
Product description1-Methyl-4-(tetramethyl-1,3,2-dioxaborolan-2-yl)-3-(trifluoromethyl)-1H-pyrazole 97%
Packaging25G
Price$425
Updated2026-05-27
Buy

ManufacturerAK Scientific
Product number9785AF
Product description1-Methyl-3-trifluoromethyl-1H-pyrazole-4-boronic acid pinacol ester
Packaging5g
Price$647
Updated2021-12-16
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ManufacturerAlichem
Product number1218790534
Product description1-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3-(trifluoromethyl)-1H-pyrazole
Packaging25g
Price$3417
Updated2021-12-16
Buy

ManufacturerAlichem
Product number1218790534
Product description1-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3-(trifluoromethyl)-1H-pyrazole
Packaging5g
Price$1340
Updated2021-12-16
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ManufacturerAlichem
Product number1218790534
Product description1-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3-(trifluoromethyl)-1H-pyrazole
Packaging10g
Price$1989.9
Updated2021-12-16
Buy

ManufacturerAmbeed
Product numberA565267
Product description1-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3-(trifluoromethyl)-1H-pyrazole 95%
Packaging25g
Price$583
Updated2021-12-16
Buy

ManufacturerAmbeed
Product numberA565267
Product description1-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3-(trifluoromethyl)-1H-pyrazole 95%
Packaging1g
Price$35
Updated2021-12-16
Buy

Manufacturer	Product number	Product description	Packaging	Price	Updated	Buy
aablocks	AA00166Z	1-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3-(trifluoromethyl)-1H-pyrazole 95%	250mg	$11	2026-05-28	Buy
aablocks	AA00166Z	1-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3-(trifluoromethyl)-1H-pyrazole 95%	1g	$17	2026-05-28	Buy
aablocks	AA00166Z	1-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3-(trifluoromethyl)-1H-pyrazole 95%	5g	$64	2026-05-28	Buy
aablocks	AA00166Z	1-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3-(trifluoromethyl)-1H-pyrazole 97%	10g	$111	2026-05-28	Buy
ACHEMBLOCK	L14163	1-Methyl-4-(tetramethyl-1,3,2-dioxaborolan-2-yl)-3-(trifluoromethyl)-1H-pyrazole 97%	1G	$185	2021-12-16	Buy
ACHEMBLOCK	L14163	1-Methyl-4-(tetramethyl-1,3,2-dioxaborolan-2-yl)-3-(trifluoromethyl)-1H-pyrazole 97%	250MG	$95	2021-12-16	Buy
ACHEMBLOCK	L14163	1-Methyl-4-(tetramethyl-1,3,2-dioxaborolan-2-yl)-3-(trifluoromethyl)-1H-pyrazole 97%	5G	$100	2026-05-25	Buy
ACHEMBLOCK	L14163	1-Methyl-4-(tetramethyl-1,3,2-dioxaborolan-2-yl)-3-(trifluoromethyl)-1H-pyrazole 97%	5G	$100	2026-05-27	Buy
ACHEMBLOCK	L14163	1-Methyl-4-(tetramethyl-1,3,2-dioxaborolan-2-yl)-3-(trifluoromethyl)-1H-pyrazole 97%	25G	$425	2026-05-25	Buy
ACHEMBLOCK	L14163	1-Methyl-4-(tetramethyl-1,3,2-dioxaborolan-2-yl)-3-(trifluoromethyl)-1H-pyrazole 97%	25G	$425	2026-05-27	Buy
AK Scientific	9785AF	1-Methyl-3-trifluoromethyl-1H-pyrazole-4-boronic acid pinacol ester	5g	$647	2021-12-16	Buy
Alichem	1218790534	1-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3-(trifluoromethyl)-1H-pyrazole	25g	$3417	2021-12-16	Buy
Alichem	1218790534	1-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3-(trifluoromethyl)-1H-pyrazole	5g	$1340	2021-12-16	Buy
Alichem	1218790534	1-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3-(trifluoromethyl)-1H-pyrazole	10g	$1989.9	2021-12-16	Buy
Ambeed	A565267	1-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3-(trifluoromethyl)-1H-pyrazole 95%	25g	$583	2021-12-16	Buy
Ambeed	A565267	1-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3-(trifluoromethyl)-1H-pyrazole 95%	1g	$35	2021-12-16	Buy

Next Last

Properties

Melting point :99-100°C
Boiling point :324.6±42.0 °C(Predicted)
Density :1.21±0.1 g/cm3(Predicted)
storage temp. :under inert gas (nitrogen or Argon) at 2-8°C
pka :-0.87±0.10(Predicted)
form :powder or crystals
Appearance :White to off-white Solid
InChI :1S/C11H16BF3N2O2/c1-9(2)10(3,4)19-12(18-9)7-6-17(5)16-8(7)11(13,14)15/h6H,1-5H3
InChIKey :MUZZCKPFJNQCIH-UHFFFAOYSA-N
SMILES :FC(F)(F)C1=NN(C)C=C1B2OC(C)(C)C(C)(C)O2

Safety Information

Symbol(GHS):

Signal word:

Warning

Hazard statements:

Code	Hazard statements	Hazard class	Category	Signal word	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:

P264	Wash hands thoroughly after handling.
P264	Wash skin thouroughly after handling.
P270	Do not eat, drink or smoke when using this product.
P280	Wear protective gloves/protective clothing/eye protection/face protection.
P301+P312	IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.
P302+P352	IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338	IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P321	Specific treatment (see … on this label).
P330	Rinse mouth.
P332+P313	IF SKIN irritation occurs: Get medical advice/attention.
P362	Take off contaminated clothing and wash before reuse.
P501	Dispose of contents/container to..…

Description

Useful boronic acid pinacol ester for synthesis of various bioactive small molecules. This product was previously listed as BML00234.

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1-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3-(trifluoromethyl)-1H-pyrazole

Properties

Safety Information

Description

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