Benzo[b]benzo[4,5]thieno[2,3-d]thiophene

Name: Benzo[b]benzo[4,5]thieno[2,3-d]thiophene
Brand: ChemScene
Availability: InStock
Rating: 5 (1 reviews)

CAS No. 248-70-4
Cat. No. CS-0110612
Purity≥98%
MDL No.MFCD02114004

HazMat Fee +

HazMat Fee

An item is classified as a dangerous good if our website displays Hazardous Material (HazMat) information for it. There is a HazMat shipping fee for each item that qualifies as a dangerous good, except in the following scenarios:

The shipment is processed through FedEx Ground under the Limited Quantity option.

Each bottle is packed as an Excepted Quantity, with a maximum of 1g for items in class 6.1 packing group I or II, and up to 25g for all other hazardous materials.

If shipping is charged to your FedEx account, the HazMat fee will be billed directly by the courier. Otherwise, the fee will be included on your invoice. To help you avoid the HazMat fee, we can package a 5g order of a class 6.1 packing group I or II material as five separate 1g units, and a 100g order of any other dangerous good as four 25g units. This packaging adjustment will be made unless you instruct otherwise on your purchase order. Below, you will find the fee schedule from FedEx for handling hazardous materials.

Type	HazMat Fee
Excepted Quantity	$0.00
FedEx Limited Quantities Ground	$0.00
Hazmat Ground shipping	$50.00+
Inaccessible (Haz class 6.1 or 9), Domestic	$68.00+
Accessible (Haz class 3, 4, 5 or 8), Domestic	$158.00+
Inaccessible (Haz class 6.1 or 9), International	$108.00+
Accessible (Haz class 3, 4, 5 or 8), International	$238.00+

An item is classified as a dangerous good if our website displays Hazardous Material (HazMat) information for it.

There is a HazMat shipping fee for each item that qualifies as a dangerous good. Please contact our quotation team via email to confirm the details.

*For research and further manufacturing use only, not for direct human use.

Benzo[b]benzo[4,5]thieno[2,3-d]thiophene|CS-0110612

Structure of 248-70-4

Size

Price

Quantity

* Please select Quantity before adding items.

General Information

CAS No. 248-70-4
Cat. No. CS-0110612
Purity ≥98%
MDL No. MFCD02114004
Storage 4°C, stored under nitrogen
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₁₄H₈S₂
Molecular Weight 240.34
Synonym(s) benzthieno[3,2-b]benzothiophene
SMILES C12=CC=CC=C1C3=C(S2)C4=CC=CC=C4S3

Description

Benzo[b]benzo[4,5]thieno[2,3-d]thiophene delivers a rigid, planar polycyclic scaffold with enhanced electron delocalization. This fused thiophene system exhibits high thermal stability and favorable charge transport properties, making it well-suited for organic semiconductors and advanced materials in optoelectronic applications.

Application

Benzo[b]benzo[4,5]thieno[2,3-d]thiophene serves as a rigid, polycyclic sulfur-containing heteroaromatic scaffold with enhanced planarity and electron-rich character. It functions as a key building block in the synthesis of organic semiconductors and functional materials, enabling efficient π-conjugation and favorable charge transport properties. The molecule exhibits excellent thermal and oxidative stability, facilitating its use in high-performance device architectures. Its well-defined reactivity profile supports selective functionalization at peripheral positions, allowing tailored derivatization for advanced electronic applications.

Synthesis

Route1
- In-stock
  
  89-98-5
- ~44%
- In-stock
  
  248-70-4
References
- Saito, Masahiko; Osaka, Itaru; Miyazaki, Eigo; Takimiya, Kazuo; Kuwabara, Hirokazu; Ikeda, Masaaki Tetrahedron Letters, 2011 , vol. 52, # 2 p. 285 - 288
Route2
- 38399-13-2
- ~62%
- In-stock
  
  248-70-4
References
- Li, Yaming; Nie, Caiping; Wang, Huifeng; Li, Xiaoying; Verpoort, Francis; Duan, Chunying European Journal of Organic Chemistry, 2011 , # 36 p. 7331 - 7338
Route3
- 76280-33-6
- ~79%
- In-stock
  
  248-70-4
References
- Zherdeva, S. Yu.; Zheltov, A. Ya.; Kozik, T. A.; Stepanov, B. I. Journal of Organic Chemistry USSR (English Translation), 1980 , vol. 16, p. 379 - 383 Zhurnal Organicheskoi Khimii, 1980 , vol. 16, # 2 p. 425 - 429

Safety Information

Download SDS

GHS Pictogram :	GHS No : GHS07
Signal Word : Warning	UN#: N/A
Class : N/A	Packing Group : N/A
Hazard Statements : H302-H315-H319-H335
Precautionary Statements : P261-P264-P270-P271-P280-P302+P352-P304+P340-P305+P351+P338-P330-P362+P364-P403+P233-P405-P501

Quality Control

To search for quality control of cas , please enter both the product number and the lot/batch number.

Computational Chemistry Data

TPSA 0
LogP 5.2692
H_Acceptors 2
H_Donors 0
Rotatable_Bonds 0

Other Classifications

Material Science Electronic Materials Org. Field- Effect Transistor

Material Science Material Building Blocks Small Molecule Semiconductor Building Blocks Benzothiophenes

Key Words

Benzo[b]benzo[4,5]thieno[2,3-d]thiophene sigmaBenzo[b]benzo[4,5]thieno[2,3-d]thiophene manufacturerBenzo[b]benzo[4,5]thieno[2,3-d]thiophene priceBenzo[b]benzo[4,5]thieno[2,3-d]thiophene structureBenzo[b]benzo[4,5]thieno[2,3-d]thiophene SDSbuy Benzo[b]benzo[4,5]thieno[2,3-d]thiopheneBenzo[b]benzo[4,5]thieno[2,3-d]thiophene supplierBenzo[b]benzo[4,5]thieno[2,3-d]thiophene usesBenzo[b]benzo[4,5]thieno[2,3-d]thiophene molecular weightprice of Benzo[b]benzo[4,5]thieno[2,3-d]thiopheneBenzo[b]benzo[4,5]thieno[2,3-d]thiophene chemical name formula of Benzo[b]benzo[4,5]thieno[2,3-d]thiophene

Salutation:	*Country or Region:
*Applicant Name:	*Organization Name:
*Email Address:	Quantity:
CAS NO. :	Product Name:
Remarks:
Upload Pictures

CAS.No.		Product Name
Applicant Name *		Email Address *
Phone Number *		Organization Name*
Country or Region*		Quantity*
Remarks:

Product Name:
Cat. No.: .		CAS NO. :
Quantity:

Benzo[b]benzo[4,5]thieno[2,3-d]thiophene

CAS No. 248-70-4

Recommended Products

General Information

Description

Application

Synthesis

References

References

References

Safety Information

Quality Control

Computational Chemistry Data

Similar Products

Other Classifications

Recently Viewed Products

Key Words