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CAS 1723-27-9 Thieno[3,2-B]Thiophene-5-Carboxylic Acid C7H4O2S2

CAS 1723-27-9 Thieno[3,2-B]Thiophene-5-Carboxylic Acid C7H4O2S2

Product Details:
Place of Origin: China
Brand Name: Guiding-Bio
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Detailed Product Description
Synonyms: Thieno[3,2-b]thiophen-2-carbonsaeure; Thieno[3,2-b]thiophene-2-carboxylic Acid; Thiopheno[3,2-b]thiophene-2-carboxylic Acid; THI073; 2-carboxy-thieno[3,2-b]thiophene; CAS Number: 1723-27-9
Molecular Formula: C7H4O2S2 Molecular Weight: 184.235
Density: 1.601g/cm3 Boiling Point: 386.7ºC At 760mmHg
Melting Point: 225-227ºC Flash Point: 187.6ºC

CAS 1723-27-9 Thieno[3,2-B]Thiophene-5-Carboxylic Acid C7H4O2S2


  • Melting point:225-227
  • Boiling point:386.7±22.0 °C(Predicted)
  • Density 1.601±0.06 g/cm3(Predicted)
  • storage temp. Keep in dark place,Sealed in dry,2-8°C
  • pka3.40±0.30(Predicted)
  • CAS DataBase Reference1723-27-9(CAS DataBase Reference)


Package & Delivery


For 10kg or less: PTFE barrel
For 10-50kg: Solid: Two layers of PE bag with paper barrel/fiber barrel outside
Liquid: Plastic barrel or steel-plastic composite barrel under Nitrogenor Helium protection, if needed
Delivery:According to the specific requirement.By courier, by air or by sea on FOB, CIF, DAP basis is all workable
Regulation:Proper package and shipping guideline will be applied and strictly followed for any hazardous product


What We Deliver

Chemical products with high-quality and right chemistry

  • Expertise in custom synthesis and contract research, and an established track record of scaling up from gram to kilo and ton levels of production.
  • Project management system that adheres to product delivery within the scope, duration, budget, and quality parameters of clients

Technical & RA support & Compliance improvement

  • Support on technical package and registration dossiers
  • Full analytical support including LC/LC-MS, GC/GC-MS and NMR etc.
  • IP non-infringement support and the compliance program under confidential agreement, quality agreement or any specified supplying agreement.

In-law & In-time logistics approaches

  • Dedicated logistics team with a wealth of experience
  • Qualified third-party partners
  • High safety standard in line with national/international laws

Global Supply Chain Management Service

  • An open and intelligent sourcing report against each RFQ
  • Multi-functional cooperation contains but not limit to technology, compliance and quality issues
  • Due-diligence check to evaluate the sustainability and stability of the manufacturer
  • Occasional supply situation analysis report rooted in China

Risk management and uncertainties removal in SCM


CAS 1723-27-9 Thieno[3,2-B]Thiophene-5-Carboxylic Acid C7H4O2S2 0

CAS 1723-27-9 Thieno[3,2-B]Thiophene-5-Carboxylic Acid C7H4O2S2 1

CAS 1723-27-9 Thieno[3,2-B]Thiophene-5-Carboxylic Acid C7H4O2S2 2

Contact Details
Changzhou Guiding Bio-Tech. Co.,Ltd

Contact Person: Liya Liu

Tel: +86-519- 86686860

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