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1,3,4-Thiadiazole, 2,5-dibroMo-

Product Name
1,3,4-Thiadiazole, 2,5-dibroMo-
CAS No.
55981-29-8
Chemical Name
1,3,4-Thiadiazole, 2,5-dibroMo-
Synonyms
2,5-DibroMothiadiazole;2,5-DibroMo-1,3,4-thiadiazole;1,3,4-Thiadiazole, 2,5-dibroMo-
CBNumber
CB32629251
Molecular Formula
C2Br2N2S
Formula Weight
243.91
MOL File
55981-29-8.mol
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1,3,4-Thiadiazole, 2,5-dibroMo- Property

Melting point:
112-113°
Boiling point:
289.4±23.0 °C(Predicted)
Density 
2.495±0.06 g/cm3(Predicted)
storage temp. 
under inert gas (nitrogen or Argon) at 2-8°C
pka
-2.77±0.10(Predicted)
Appearance
White to yellow Solid
InChI
InChI=1S/C2Br2N2S/c3-1-5-6-2(4)7-1
InChIKey
MNHUBBRVPVSVCM-UHFFFAOYSA-N
SMILES
S1C(Br)=NN=C1Br
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Safety

HS Code 
2934999090
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P260Do not breathe dust/fume/gas/mist/vapours/spray.

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

P312Call a POISON CENTER or doctor/physician if you feel unwell.

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N-Bromosuccinimide Price

TRC
Product number
B426168
Product name
2,5-Dibromo-1,3,4-thiadiazole
Packaging
500mg
Price
$175
Updated
2021/12/16
Oakwood
Product number
304375
Product name
2,5-Dibromo-1,3,4-thiadiazole
Packaging
250mg
Price
$39
Updated
2021/12/16
Matrix Scientific
Product number
067152
Product name
Dibromo-1,3,4-thiadiazole
Packaging
500mg
Price
$49
Updated
2021/12/16
ChemScene
Product number
CS-W021516
Product name
2,5-Dibromo-1,3,4-thiadiazole
Purity
98.86%
Packaging
1g
Price
$53
Updated
2021/12/16
Oakwood
Product number
304375
Product name
2,5-Dibromo-1,3,4-thiadiazole
Packaging
1g
Price
$75
Updated
2021/12/16
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1,3,4-Thiadiazole, 2,5-dibroMo- Chemical Properties,Usage,Production

Synthesis

37566-39-5

55981-29-8

General procedure for the synthesis of 2,5-dibromo-1,3,4-thiadiazole from 2-amino-5-bromo-1,3,4-thiadiazole: 2-amino-5-bromo-1,3,4-thiadiazole (20 g, 0.111 mol) was slowly added under nitrogen protection to a non-homogeneous mixture containing CuBr2 (29.8 g, 1.2 eq.) and t-BuNO2 (19.8 mL, density = 0.867 g/mL) in a non-homogeneous mixture of MeCN (600 mL, 0.2 M solution), taking care to control the rate of addition to avoid intense exotherm. The reaction mixture was stirred overnight at room temperature. Upon completion of the reaction, the reaction was quenched with 600 mL of saturated aqueous NH4Cl solution and then extracted with ether. The organic layer was dried with MgSO4, filtered and concentrated in vacuum to give the crude product. The crude product was ground in 200 mL MeOH and the solid was collected by filtration to afford the target compound 2,5-dibromo-1,3,4-thiadiazole (18.7 g, 70% yield).

References

[1] Bioorganic and Medicinal Chemistry Letters, 2011, vol. 21, # 2, p. 861 - 864
[2] Macromolecules, 2005, vol. 38, # 4, p. 1500 - 1503
[3] Patent: WO2010/45303, 2010, A2. Location in patent: Page/Page column 97
[4] ACS Medicinal Chemistry Letters, 2012, vol. 3, # 3, p. 198 - 202

1,3,4-Thiadiazole, 2,5-dibroMo- Preparation Products And Raw materials

Raw materials

Preparation Products

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1,3,4-Thiadiazole, 2,5-dibroMo- Suppliers

China 62 India 1 United Kingdom 1 United States 6 Global 70
Changzhou green chemical co., LTD
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0519-82733646 13814799543
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sales_01@salutchem.com
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China
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Energy Chemical
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Nanjing Chemlin Chemical Co., Ltd
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025-83697070 13770331960
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+86-25-83453306
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025-66113011 17714375163
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(1)02557626880
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Bide Pharmatech Ltd.
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400-400-164-7117 18317119277
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+86-21-61629029
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Cool Pharm, Ltd
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021-60455363 18019463053
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View Lastest Price from 1,3,4-Thiadiazole, 2,5-dibroMo- manufacturers

Career Henan Chemical Co
Product
1,3,4-Thiadiazole, 2,5-dibroMo- 55981-29-8
Price
US $7.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
100kg
Release date
2020-02-17

55981-29-8, 1,3,4-Thiadiazole, 2,5-dibroMo-Related Search:

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