 Home > Pharmaceutical Intermediates > Bulk Drug Intermediates > (17α)-17-Hydroxy-2-(hydroxymethylene)pregn-4-en-20-yn-3-one for Sale > 17alpha-hydroxy-2-(hydroxymethylene)pregn-4-en-20-yn-3-one 2787-02-2 high purity

17alpha-hydroxy-2-(hydroxymethylene)pregn-4-en-20-yn-3-one 2787-02-2 high purity

Name: 17alpha-hydroxy-2-(hydroxymethylene)pregn-4-en-20-yn-3-one 2787-02-2 high purity
Brand: zentrachem
SKU: pr2509031651
Price: 0.1 USD
Availability: InStock

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CAS No.:

2787-02-2

Grade:

Pharmaceutical Grade

Content:

99%

Port:

Shanghai

Brand:

zentrachem

Packaging:

25kg/drum

Price valid (until):

2025-09-30

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Hangzhou Zentra Bio-Chemical Co., Ltd.

Company Type:

Trader

Location:

China

Qualification:

Main Products:

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

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Product Description
Seller Information

Description

Product Detail

samples available

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

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.

Items	Specifications

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Certificates

Basic Info

Product Name:

(17α)-17-Hydroxy-2-(hydroxymethylene)pregn-4-en-20-yn-3-one

Other Name:

Pregn-4-en-20-yn-3-one,17-hydroxy-2-(hydroxymethylene)-,(17α)-;17α-Pregn-4-en-20-yn-3-one,17-hydroxy-2-(hydroxymethylene)-;Testosterone,17-ethynyl-2-(hydroxymethylene)-;(17α)-17-Hydroxy-2-(hydroxymethylene)pregn-4-en-20-yn-3-one

CAS No.:

2787-02-2

Molecular Formula:

C22H28O3

InChIKeys:

InChIKey=FYEOMZSZJFOTGQ-LHZXLZLDSA-N

Molecular Weight:

340.45592

Exact Mass:

340.46

EC Number:

220-513-5

Categories:

Bulk Drug Intermediates

Characteristics

PSA:

57.5

See More (17α)-17-Hydroxy-2-(hydroxymethylene)pregn-4-en-20-yn-3-one Properties 

Hazard Identification

Classification of the substance or mixture

Carcinogenicity, Category 2

Reproductive toxicity, Category 1A

Reproductive toxicity, Additional category for effects on or via lactation

Hazardous to the aquatic environment, long-term (Chronic) - Category Chronic 3

GHS label elements, including precautionary statements

Precautionary statement(s)
Pictogram(s)
Signal word	Danger
Hazard statement(s)	H351 Suspected of causing cancer H360 May damage fertility or the unborn child H362 May cause harm to breast-fed children H412 Harmful to aquatic life with long lasting effects
Prevention	P203 Obtain, read and follow all safety instructions before use. P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/... P260 Do not breathe dust/fume/gas/mist/vapours/spray. P263 Avoid contact during pregnancy and while nursing. P264 Wash ... thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P273 Avoid release to the environment.
Response	P318 IF exposed or concerned, get medical advice.
Storage	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 (17α)-17-Hydroxy-2-(hydroxymethylene)pregn-4-en-20-yn-3-one 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

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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17alpha-hydroxy-2-(hydroxymethylene)pregn-4-en-20-yn-3-one 2787-02-2 high purity

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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