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Thieno[2,3-b]pyridine (8CI,9CI)

Product Name
Thieno[2,3-b]pyridine (8CI,9CI)
CAS No.
272-23-1
Chemical Name
Thieno[2,3-b]pyridine (8CI,9CI)
Synonyms
NSC 152397;Thieno[2,3-b]pyridine (8CI,9CI)
CBNumber
CB21071108
Molecular Formula
C7H5NS
Formula Weight
135.19
MOL File
272-23-1.mol
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Thieno[2,3-b]pyridine (8CI,9CI) Property

Boiling point:
236.5±13.0 °C(Predicted)
Density 
1.272±0.06 g/cm3(Predicted)
storage temp. 
Keep in dark place,Sealed in dry,Room Temperature
pka
4.54±0.30(Predicted)
Appearance
Colorless to light yellow Liquid
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Safety

HS Code 
2934999090
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P321Specific treatment (see … on this label).

P330Rinse mouth.

P332+P313IF SKIN irritation occurs: Get medical advice/attention.

P362Take off contaminated clothing and wash before reuse.

P501Dispose of contents/container to..…

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N-Bromosuccinimide Price

TRC
Product number
B587533
Product name
thieno[2,3-b]pyridine
Packaging
50mg
Price
$110
Updated
2021/12/16
SynQuest Laboratories
Product number
7H70-1-77
Product name
Thieno[2,3-b]pyridine
Purity
97%
Packaging
250mg
Price
$120
Updated
2021/12/16
SynQuest Laboratories
Product number
7H70-1-77
Product name
Thieno[2,3-b]pyridine
Purity
97%
Packaging
1g
Price
$280
Updated
2021/12/16
AK Scientific
Product number
Z4531
Product name
Thieno[2,3-b]pyridine
Packaging
1g
Price
$292
Updated
2021/12/16
American Custom Chemicals Corporation
Product number
CHM0992420
Product name
THIENO[2,3-B]PYRIDINE
Purity
95.00%
Packaging
5MG
Price
$505.29
Updated
2021/12/16
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Thieno[2,3-b]pyridine (8CI,9CI) Chemical Properties,Usage,Production

Synthesis

609-40-5

122-31-6

272-23-1

Thieno[2,3-b]pyridine was synthesized as follows: 1.08 g (8.3 mmol) of 2-nitrothiophene and 16 mL of concentrated hydrochloric acid were sequentially added to a vigorously stirred mixture at 30 °C. Subsequently, a total of 2.08 g of granulated tin was added in batches of 0.42 g. After most of the tin was dissolved, 6 mL of ethanol and 0.5 g of anhydrous zinc chloride were added to the mixture and the mixture was heated to 85°C. The mixture was then stirred vigorously at 30°C for 1 hour. Next, 1.4 g (6.5 mmol) of malonaldehyde tetraethyl acetal (purchased from Aldrich Chemical Co.) dissolved in 3 mL of ethanol was added all at once. The reaction mixture was maintained at 85 °C for 1 h before the reaction was quenched by pouring 9 g of ice. The aqueous mixture was alkalized with concentrated ammonia solution and subsequently extracted with three 5 mL dichloromethane. The organic phases were combined and distilled to give 0.4 g (44% yield) of the target product thieno[2,3-b]pyridine as a light yellow liquid.

References

[1] Tetrahedron Letters, 2017, vol. 58, # 20, p. 1952 - 1956
[2] Patent: WO2011/79804, 2011, A1. Location in patent: Page/Page column 33
[3] Patent: US2012/245178, 2012, A1. Location in patent: Page/Page column 19

Thieno[2,3-b]pyridine (8CI,9CI) Preparation Products And Raw materials

Raw materials

Preparation Products

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Thieno[2,3-b]pyridine (8CI,9CI) Suppliers

China 70 Europe 1 India 2 United States 5 Global 78
A.J Chemicals
Tel
--
Fax
--
Email
sales@ajchem.in
Country
India
ProdList
6100
Advantage
58
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View Lastest Price from Thieno[2,3-b]pyridine (8CI,9CI) manufacturers

Henan Aochuang Chemical Co.,Ltd.
Product
Thieno[2,3-b]pyridine (8CI,9CI) 272-23-1
Price
US $0.00-0.00/kg
Min. Order
1kg
Purity
98%
Supply Ability
1Ton
Release date
2022-09-27
Career Henan Chemical Co
Product
Thieno[2,3-b]pyridine (8CI,9CI) 272-23-1
Price
US $1.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
Customized
Release date
2019-12-18

272-23-1, Thieno[2,3-b]pyridine (8CI,9CI)Related Search:

thieno[3,2-c]pyridine THIENO[3,2-B]PYRIDINE THIENO(3 2-B)PYRIDIN-7-OL THIENO[2,3-B]PYRIDINE-2-CARBOXYLIC ACID THIENO[3,2-B]PYRIDINE-6-CARBOXYLIC ACID METHYL ESTER Thieno[2,3-b]pyridine-5-carboxylic acid THIENO[2,3-B]PYRIDINE-2-CARBALDEHYDE Thieno[3,2-d]pyrimidine-4-carboxylic acid Thieno[2,3-d]pyrimidin-4(3H)one thieno[2,3-b]pyridin-4-ol Methyl thieno[2,3-b]pyridine-2-carboxylate thieno[2,3-d]thiazol-2-amine 1,3-Dihydrothiopheno[3,2-d]pyrimidine-2,4-dione THIENO[3,2-B]THIOPHENE-2-CARBOXYLIC ACID 3-AMINO-4,6-DIMETHYL-THIENO[2,3-B]PYRIDINE-2-CARBONITRILE ETHYL 3-AMINO-4,6-DIMETHYLTHIENO[2,3-B]PYRIDINE-2-CARBOXYLATE METHYL 3-[(2,4-DICHLOROBENZYL)OXY]THIENO[2,3-B]PYRIDINE-2-CARBOXYLATE METHYL 3-HYDROXYTHIENO[2,3-B]PYRIDINE-2-CARBOXYLATE

  • NSC 152397
  • Thieno[2,3-b]pyridine (8CI,9CI)
  • 272-23-1
  • THIENOPYRIDINE
  • Building Blocks
  • Thieno[x,x-y]pyridine