 Home > Pharmaceutical Intermediates > Bulk Drug Intermediates > 3a,4,7,7a-Tetrahydro-2-hydroxy-4,7-methano-1H-isoindole-1,3(2H)-dione for Sale > HONB N-hydroxy-5-norbornene-2.3-dicarboxylimide 21715-90-2

HONB N-hydroxy-5-norbornene-2.3-dicarboxylimide 21715-90-2

Name: HONB N-hydroxy-5-norbornene-2.3-dicarboxylimide 21715-90-2
Brand: Zentrachem
SKU: pr2509071266
Price: 0.1 USD
Availability: InStock

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CAS No.:

21715-90-2

Grade:

Pharmaceutical Grade

Content:

99%

Port:

Shanghai

Brand:

Zentrachem

Packaging:

25kgs in 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:

3a,4,7,7a-Tetrahydro-2-hydroxy-4,7-methano-1H-isoindole-1,3(2H)-dione

Other Name:

4,7-Methano-1H-isoindole-1,3(2H)-dione,3a,4,7,7a-tetrahydro-2-hydroxy-;5-Norbornene-2,3-dicarboximide,N-hydroxy-;3a,4,7,7a-Tetrahydro-2-hydroxy-4,7-methano-1H-isoindole-1,3(2H)-dione;N-Hydroxy-5-norbornene-2,3-dicarboximide;N-Hydroxy-5-bicyclo[2.2.1]heptene-2,3-dicarboximide;NSC 100740;NSC 12953;HONB;3,5-Dioxo-4-azatricyclo[5.2.1.02′6]dec-8-en-4-ol

CAS No.:

21715-90-2

Molecular Formula:

C9H9NO3

InChIKeys:

InChIKey=ZUSSTQCWRDLYJA-UHFFFAOYSA-N

Molecular Weight:

179.17

Exact Mass:

179.17

BRN:

13540

EC Number:

244-538-6

NSC Number:

100740|12953

HScode:

29280090

Categories:

Bulk Drug Intermediates

Characteristics

PSA:

57.6

XLogP3:

-0.2

Appearance:

white crystals

Density:

1.6±0.1 g/cm3

Melting Point:

164 °C

Boiling Point:

347.696°C at 760 mmHg

Flash Point:

164.1±30.7 °C

Refractive Index:

1.673

Water Solubility:

soluble in ethanol

Storage Conditions:

Store at RT.

Vapor Pressure:

0mmHg at 25°C

See More 3a,4,7,7a-Tetrahydro-2-hydroxy-4,7-methano-1H-isoindole-1,3(2H)-dione Properties 

Hazard Identification

Classification of the substance or mixture

Not classified.

GHS label elements, including precautionary statements

Precautionary statement(s)
Pictogram(s)	No symbol.
Signal word	No signal word
Hazard statement(s)	none
Prevention	none
Response	none
Storage	none
Disposal	none

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 3a,4,7,7a-Tetrahydro-2-hydroxy-4,7-methano-1H-isoindole-1,3(2H)-dione 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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