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Tri(ethylene glycol) di-p-toluenesulfonate 19249-03-7

Name: Tri(ethylene glycol) di-p-toluenesulfonate 19249-03-7
Brand: Zentrachem
SKU: pr2509071400
Price: 0.1 USD
Availability: InStock

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CAS No.:

19249-03-7

Grade:

Pharmaceutical Grade

Content:

99%

Port:

Shanghai

Brand:

Zentrachem

Packaging:

25kgs in drum

Sample Available:

Yes

Price valid (until):

2025-09-30

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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 Details
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

ECHEMI Editorial Reference

Tos-PEG4-Tos is a PEG linker containing two tosyl groups. The hydrophilic PEG spacer increases solubility in aqueous media. The tosyl group is a very good leaving group for nucleophilic substitution reactions.
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Basic Info

Product Name:
Tri(Ethylene Glycol) DI-P-Toluenesulfonate

Other Name:
1,10-Ditosyl-1,4,7,10-tetraoxadecane;1,8-Bis(tosyloxy)-3,6-dioxaoctane;Bis(4-methylbenzenesulfonic acid)3,6-dioxa-1,8-octanediyl ester;Bis(4-methylbenzenesulfonic acid)ethylenebis(oxyethylene) ester;Bis(p-toluenesulfonic acid)ethylenebisoxybisethylene ester;Triethylene glycol di-p-tosylate,98%;Triethleneglycol ditosylate;Triethylene glycol ditoluenesulfonate.

CAS No.:
19249-03-7

Molecular Formula:
C20H26O8S2

InChIKeys:
KCONMNWPRXAWKK-UHFFFAOYSA-N

Molecular Weight:
458.55

Exact Mass:
458.55

BRN:
632509

EC Number:
628-844-0

NSC Number:
244980

Color/Form:
White to Almost white

HScode:
29093090

Categories:
Bulk Drug Intermediates

Characteristics

Density:
1.3164 (rough estimate)

Melting Point:
78-82 °C(lit.)

Boiling Point:
534.03°C (rough estimate)

Refractive Index:
1.6000 (estimate)

Critical Temperature & Pressure:
Sealed in dry,Room Temperature
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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Tri(ethylene glycol) di-p-toluenesulfonate 19249-03-7

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