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1-Methyl-4-pyrazole boronic acid pinacol ester CAS 761446-44-0 pharmaceutical intermediate

Name: 1-Methyl-4-pyrazole boronic acid pinacol ester CAS 761446-44-0 pharmaceutical intermediate
Brand: Zentrachem
SKU: pr2509061027
Price: 0.1 USD
Availability: InStock

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CAS No.:

761446-44-0

Grade:

Pharmaceutical Grade

Content:

99%

Port:

shanghai

Brand:

Zentrachem

Packaging:

25kgs in drum

Price valid (until):

2025-10-06

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Hangzhou Zentra Bio-Chemical Co., Ltd.

Company Type:

Trader

Location:

China

Payment Terms:

TT against copy of documents,D/P,L/C,D/A,100% TT in advance

Average Lead Time:

14 days

Qualification:

Main Products:

pharmaceutical intermediates,excipients,plant extracts,food additives,CDMO,fine cheimcals

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Product Description
Seller Information

Description

Product Detail

Shop 1-Methyl-4-pyrazole boronic acid pinacol ester CAS 761446-44-0 pharmaceutical intermediate-Detailed Image 1

1-Methyl-4-pyrazole boronic acid pinacol ester Chemical Properties

Melting point	59-64 °C(lit.)
Boiling point	308.3±15.0 °C(Predicted)
density	1.05±0.1 g/cm3(Predicted)
storage temp.	Keep in dark place,Sealed in dry,Room Temperature
solubility
pka	2.09±0.10(Predicted)
form	Crystals
color	Off-white to yellow
Water Solubility	Slightly soluble in water.

Capability

we are capable of:

1) quick quotation, normally within 1-2 days

2) full marketing research

3) price control and quality(regulatory) control

4) all stage support from sample, pilot, registration and commercial

5) sourcing for prodcut which is very new or hard to find

6) CMO/CDMO, from pilot-scale development to industrial-scale manufacturing

Q&A

What are the MOQ and lead time?

MOQ varies (high-value chemicals may negotiate to g-kg-level).

Lead time typically 2-4 weeks, with expedited options upon request.

How do we ensure product quality and compliance?

We enforce a 3-step protocol:

① Source only from ISO-certified suppliers;

② Provide batch-specific COA/COO;

③ Dedicated team monitors global regulations (e.g., China NECIC, EU SCIP).

Do we offer customized synthesis?

Yes!

We provide end-to-end solutions from R&D to scale-up production.

Technical specs (e.g., purity, CAS#) and intended use documentation are required.

How do we handle logistics and customs?

We support CIF/FOB/DDP/DAP terms, partner with global logistics providers,

and have in-house experts for HS code classification, hazardous material documentation, etc.

How do we manage raw material price fluctuations?

We mitigate risks via long-term contracts, multi-region sourcing,

and futures hedging, supplemented with quarterly market analysis reports.

About Us

Zentra Chemical, headquartered in Hangzhou, China, is aiming to be a global player in chemical trading and integrated solutions.

Specializing in Pharmaceutical intermediates, Agrochemical intermediates, Fine chemicals, Herbal extracts and Cosmetic ingredients, we deliver end-to-end services spanning sourcing, supply chain optimization, customized synthesis, cost management, and quality assurance, with all stage support from sample, pilot, registration and commercial

Our mission is to empower clients worldwide with agile, sustainable, and value-driven partnerships in the ever-evolving chemical industry.

Competitive Advantages

Strategic Location: Based in Hangzhou at the heart of Yangtze River Delta economic zone with global reach
Expert Team: International team of chemical engineers, trading specialists and supply chain professionals
Quality Commitment: Rigorous supplier selection and ISO-certified quality management systems
Sustainable Development: Partnering with eco-friendly manufacturers to promote green chemistry

Vision & Mission
Driven by the philosophy of “Chemistry Connects the Future,” Zentra Chemical strives to be a pioneering force in the global chemical sector. By bridging innovation, efficiency, and sustainability, we aim to build long-term partnerships that redefine industry standards and foster a greener, smarter chemical ecosystem.

Global Reach, Local Expertise – Zentra Chemical is your trusted partner for chemical excellence.

Why us

Supplier, distributor & marketer of chemicals with >20 yrs of experience, with Integrated sourcing solutions
Wide product range, We can source any fine chemical you require, unlimited range, including intermediates and products for agrochemicals, cosmetics, APIs, nanotechnology, additives, flavors, fragrances, photography, plant extracts, electronics industries and more
We can solve your sourcing problems through our own or third party manufacturing in the most transparent way
We supply all stage support from sample, pilot, registration and commercial
Through selected pre-qualified partners under exclusive arrangements, we offer Contract manufacturing and custom synthesis, Kilo to Multi-ton scale production

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Excipients

L-Malic Acid, CAS 97-67-6

DL-Malic Acid, CAS 617-48-1

L(+)-Tartaric Acid, CAS 87-69-4

DL-Tartaric Acid, CAS 133-37-9

Potassium Bitartrate, CAS 868-14-4

Aspartame, CAS 22839-47-0

ISO, Halal, kosher certificates are all available.

ECHEMI Editorial Reference

White to light yellow crystal powde

Research & Reference Note

1-Methyl-4-pyrazole boronic acid pinacol ester CAS 761446-44-0 pharmaceutical intermediate is listed on ECHEMI for industrial / laboratory sourcing. This listing is for industrial and laboratory research use. Product information on ECHEMI is provided for sourcing and specification reference. It is not medical advice, a clinical recommendation, or an approved therapy description. Always verify regulatory status, purity, and intended use with the supplier and applicable authorities before purchase or use.

Authoritative sources

Disclaimer: This listing is for industrial and laboratory research use. Product information on ECHEMI is provided for sourcing and specification reference. It is not medical advice, a clinical recommendation, or an approved therapy description. Always verify regulatory status, purity, and intended use with the supplier and applicable authorities before purchase or use.

Reviewed by ECHEMI Scientific Review - Platform editorial review for research chemicals

Certificates

Basic Info

Product Name:

1-Methyl-4-pyrazole boronic acid pinacol ester

Other Name:

1-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-;1-METHYL- 4-PYRAZOLEBORONIC ACID PINACOL ESTER;1-METHYL-4-(4,4,5,5-TERAMETHYL-1,3,2-DIOXABOROLAN-2-YL)-1H-PYRAZOLE;1-methyl-4-(4，4，5，5-tetramethyl-1，3，2-dioxaborolan-2-yl)-1H-;1-Methyl-4-pyrazoleboronic acid pinacol ester, 1-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole;1-Methyl-4-(4,4,5-trimethyl-[1,3,2]dioxaborolan-2-yl)-1H-pyrazole;1-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole, 97+%;2-(1-Methylpyrazol-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

CAS No.:

761446-44-0

Molecular Formula:

C10H17BN2O2

InChIKeys:

UCNGGGYMLHAMJG-UHFFFAOYSA-N

Molecular Weight:

208.07

Exact Mass:

208.07

EC Number:

616-293-9

TSCA:

DSSTox ID:

DTXSID40378816

Color/Form:

Off-white to yellow

HScode:

29349990

Categories:

Bulk Drug Intermediates

Characteristics

PSA:

36.3

XLogP3:

0.71930

Appearance:

Off-white to yellow Crystals

Density:

1.05±0.1 g/cm3(Predicted)

Melting Point:

59-64 °C(lit.)

Boiling Point:

308.3±15.0 °C(Predicted)

Flash Point:

140.3±20.4 °C

Refractive Index:

1.505

Water Solubility:

Slightly soluble in water.

Storage Conditions:

Refrigerator (+4°C)

PKA:

2.09±0.10(Predicted)

Critical Temperature & Pressure:

Keep in dark place,Sealed in dry,Room Temperature

See More 1-Methyl-4-pyrazole boronic acid pinacol ester Properties 

Hazard Identification

Classification of the substance or mixture

Acute toxicity - Category 4, Oral

Skin irritation, Category 2

Eye irritation, Category 2

Specific target organ toxicity â single exposure, Category 3

GHS label elements, including precautionary statements

Precautionary statement(s)
Pictogram(s)
Signal word	Warning
Hazard statement(s)	H302 Harmful if swallowed H315 Causes skin irritation H319 Causes serious eye irritation H335 May cause respiratory irritation
Prevention	P264 Wash ... thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/... P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P271 Use only outdoors or in a well-ventilated area.
Response	P301+P317 IF SWALLOWED: Get medical help. P330 Rinse mouth. P302+P352 IF ON SKIN: Wash with plenty of water/... P321 Specific treatment (see ... on this label). P332+P317 If skin irritation occurs: Get medical help. P362+P364 Take off contaminated clothing and wash it before reuse. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P319 Get medical help if you feel unwell.
Storage	P403+P233 Store in a well-ventilated place. Keep container tightly closed. P405 Store locked up.
Disposal	P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.

Other hazards which do not result in classification

no data available

Handling and Storage

Precautions for safe handling

Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

Conditions for safe storage, including any incompatibilities

Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.

See More 1-Methyl-4-pyrazole boronic acid pinacol ester Safety Data Sheet 

Seller Information

Business Type:
Trader

Main Products:
pharmaceutical intermediates,excipients,plant extracts,food additives,CDMO,fine cheimcals

Location:
Rm 301, Bld 2, Taohuahu Neighborhood Center, Hangzhou, China

Payment Terms:
TT against copy of documents,D/P,L/C,D/A,100% TT in advance

Average lead Time:
14 days

Total Employees:
5-10

Year of Establishment:
2025

Zentra Chemical, headquartered in Hangzhou, China, is aiming to be a global leader in chemical trading and integrated solutions.

Specializing in Pharmaceutical intermediates, Agrochemical intermediates, Fine chemicals, and Cosmetic ingredients, we deliver end-to-end services spanning sourcing, supply chain optimization, customized synthesis, cost management, and quality assurance.

Our mission is to empower clients worldwide with agile, sustainable, and value-driven partnerships in the ever-evolving chemical industry.

Why us

Supplier, distributor & marketer of chemicals with >20 yrs of experience, with Integrated sourcing solutions.

Wide product range , We can source any fine chemical you require, unlimited range, including intermediates and products for agrochemicals, cosmetics, APIs, nanotechnology, additives, flavors, fragrances, photography, plant extracts, electronics industries and more.

We can solve your sourcing problems through our own or third party manufacturing in the most transparent way.

We supply all stage support from sample, pilot, registration and commercial.

Through selected pre-qualified partners under exclusive arrangements, we offer Contract manufacturing and custom synthesis , Kilo to Multi-ton scale production.

Capability

with hundreds of local manufacturers(pre-qualified), we are capable of:

1) quick quotation, normally within 1-2 days;

2) full marketing research;

3) price control and quality(regulatory) control;

4) all stage support from sample, pilot, registration and commercial;

5) sourcing for prodcut which is very new or hard to find;

6) CMO/CDMO, from pilot-scale development to industrial-scale manufacturing.
Country Product Purchase Quantity Date Posted

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1-Methyl-4-Pyrazole Boronic Acid Pinacol Ester CAS 761446-44-0	/	Shandong zhishang chemical Co.,Ltd	Inquiry
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1-Methyl-4-pyrazole boronic acid pinacol ester 761446-44-0	Pharmaceutical Grade/99	Hainan Flying International Trade Co., L	Inquiry
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1-Methyl-4-pyrazole boronic acid pinacol ester CAS 761446-44-0 pharmaceutical intermediate

Product Description

Seller Information

Classification of the substance or mixture

GHS label elements, including precautionary statements

Other hazards which do not result in classification

Precautions for safe handling

Conditions for safe storage, including any incompatibilities

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