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betazole

Product Name
betazole
CAS No.
105-20-4
Chemical Name
betazole
Synonyms
betazole;Ametazole;betazole USP/EP/BP;1H-Pyrazole-3-ethanamine;2-(3-Pyrazolyl)ethanamine;3-(2-Aminoethyl)-1H-pyrazole;2-(1H-pyrazol-5-yl)ethanamine;2-(1H-pyrazol-5-yl)ethan-1-amine;2-(1H-pyrazol-5-yl)ethanamine(SALTDATA: FREE)
CBNumber
CB9898598
Molecular Formula
C5H9N3
Formula Weight
111.15
MOL File
105-20-4.mol
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betazole Property

Melting point:
25°C
Boiling point:
bp0.5 118-123°
Density 
0.9902 (rough estimate)
refractive index 
1.4690 (estimate)
storage temp. 
4°C, protect from light
solubility 
DMSO: 250 mg/mL (2249.21 mM)
pka
14.39±0.10(Predicted)
form 
Oil
color 
Colorless to light yellow
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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

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

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

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N-Bromosuccinimide Price

TRC
Product number
P847045
Product name
2-(3-Pyrazolyl)ethanamine
Packaging
10mg
Price
$45
Updated
2021/12/16
TRC
Product number
P847045
Product name
2-(3-Pyrazolyl)ethanamine
Packaging
100mg
Price
$155
Updated
2021/12/16
ChemScene
Product number
CS-0013438
Product name
Betazole
Purity
96.86%
Packaging
10mg
Price
$270
Updated
2021/12/16
American Custom Chemicals Corporation
Product number
API0009171
Product name
2-(1H-PYRAZOL-3-YL)-ETHYLAMINE
Purity
95.00%
Packaging
1G
Price
$555.45
Updated
2021/12/16
ChemScene
Product number
CS-0013438
Product name
Betazole
Purity
96.86%
Packaging
50mg
Price
$730
Updated
2021/12/16
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betazole Chemical Properties,Usage,Production

Originator

Histalog,Lilly,US,1953

Definition

ChEBI: Pyrazole in which a hydrogen adjacent to one of the nitrogen atoms is substituted by a 2-aminoethyl group. It is a histamine H2-receptor agonist used clinically to test gastric secretory function.

Manufacturing Process

A solution of 55 grams (1.1 mol) of hydrazine hydrate in 100 ml of methanol was cooled in a water bath and stirred while a solution of 48 grams (0.50 mol) of pure γ-pyrone in 100 ml of methanol was added over a period of about 15 minutes. After the addition was complete, the solution was allowed to stand at room temperature for about 1 hour, and was placed in a 1 liter hydrogenation bomb. 25 ml of liquid ammonia were added cautiously with stirring, followed by about 15 cc of Raney nickel catalyst. The bomb was charged with hydrogen to 1,800 pounds pressure, heated to 90°C and agitated. The quantity of hydrogen required to convert the hydrazone into the desired aminoethylpyrazole was taken up in about 3 hours. The bomb was cooled and opened, and the contents filtered. The filtrate was evaporated under reduced pressure to remove the methanol and the residual liquid was distilled under reduced pressure, whereby there were obtained 44.5 grams (81% yield) of 3-β-aminoethylpyrazole boiling at 118°-123°C at a pressure of 0.5 mm of Hg.

brand name

Histalog (Lilly).

Therapeutic Function

Diagnostic aid (gastric secretion)

betazole Preparation Products And Raw materials

Raw materials

Preparation Products

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betazole Suppliers

J & K SCIENTIFIC LTD.
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010-82848833 400-666-7788
Fax
86-10-82849933
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jkinfo@jkchemical.com
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China
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94657
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Beijing HuaMeiHuLiBiological Chemical
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010-56205725
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010-65763397
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waley188@sohu.com
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China
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Amadis Chemical Company Limited
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571-89925085
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0086-571-89925065
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sales@amadischem.com
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China
ProdList
131957
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Aikon International Limited
Tel
025-66113011 18112977050
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02557626880
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sales01@aikonchem.com
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China
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16027
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Bejing Famous Pharmaceutical Technology Co., Ltd.
Tel
13331045123
Fax
86-10-80339217
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1963319514@qq.com
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China
ProdList
14224
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Nanjing Hengbei Chemicals Co., Ltd.
Tel
+86-25-58393656
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+86-25-58393656
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sales@hengbeichem.cn
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China
ProdList
6854
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Shaanxi Dideu Medichem Co. Ltd
Tel
+86-029-89586680 +86-18192503167
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+86-29-88380327
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1026@dideu.com
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China
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7724
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Career Henan Chemica Co
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+86-0371-86658258 +8613203830695
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laboratory@coreychem.com
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Accela ChemBio Inc.
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United States
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Accela ChemBio Co.,Ltd.
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021-50795510 4000665055
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China
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105-20-4, betazoleRelated Search:

2-(4-FLUOROPHENYL)-5-(4-NITROPHENYL)-4,5,6,7-TETRAHYDRO-2H-PYRAZOLO[4,3-C]PYRIDINE 1-BENZYL-5-(1-[3-CHLORO-5-(TRIFLUOROMETHYL)-2-PYRIDINYL]-1H-PYRAZOL-5-YL)-3-(4-FLUOROBENZYL)-2,4(1H,3H)-PYRIMIDINEDIONE 5-[3-CHLORO-5-(TRIFLUOROMETHYL)-2-PYRIDINYL]-4,5,6,7-TETRAHYDRO-2H-PYRAZOLO[4,3-C]PYRIDINE 2-(6-CHLORO-2-PYRIDINYL)-5-(4-NITROPHENYL)-4,5,6,7-TETRAHYDRO-2H-PYRAZOLO[4,3-C]PYRIDINE 11-(3-CHLOROPHENYL)-5,11,12,12A-TETRAHYDROPYRAZOLO[3',4':4,5]PYRIDO[2,1-A]ISOQUINOLIN-8(6H)-ONE 1-(4-CHLOROPHENYL)-5-(1-[3-CHLORO-5-(TRIFLUOROMETHYL)-2-PYRIDINYL]-1H-PYRAZOL-5-YL)-3-(4-FLUOROBENZYL)-2,4(1H,3H)-PYRIMIDINEDIONE 6-(1H-PYRAZOL-5-YL)-2,3-DIHYDRO-5H-[1,3]THIAZOLO[3,2-A]PYRIMIDIN-5-ONE 11-PHENYL-5,11,12,12A-TETRAHYDROPYRAZOLO[3',4':4,5]PYRIDO[2,1-A]ISOQUINOLIN-8(6H)-ONE 2-(2,4-DIFLUOROPHENYL)-4-METHYL-6-(1H-PYRAZOL-5-YL)-1,2,4-TRIAZINE-3,5(2H,4H)-DIONE 3-(1H-PYRAZOL-5-YL)-4H-PYRIMIDO[2,1-B][1,3]BENZOTHIAZOL-4-ONE 11-(4-CHLOROPHENYL)-5,11,12,12A-TETRAHYDROPYRAZOLO[3',4':4,5]PYRIDO[2,1-A]ISOQUINOLIN-8(6H)-ONE 11-[3-CHLORO-5-(TRIFLUOROMETHYL)-2-PYRIDINYL]-5,11,12,12A-TETRAHYDROPYRAZOLO[3',4':4,5]PYRIDO[2,1-A]ISOQUINOLIN-8(6H)-ONE 6-(1H-PYRAZOL-5-YL)-5H-[1,3]THIAZOLO[3,2-A]PYRIMIDIN-5-ONE 2-(4-CHLOROPHENYL)-6-[1-(1,1-DIOXOTETRAHYDRO-1H-1LAMBDA6-THIOPHEN-3-YL)-1H-PYRAZOL-5-YL]-4-METHYL-1,2,4-TRIAZINE-3,5(2H,4H)-DIONE 5-(4-NITROPHENYL)-4,5,6,7-TETRAHYDRO-2H-PYRAZOLO[4,3-C]PYRIDINE 5-[3-CHLORO-5-(TRIFLUOROMETHYL)-2-PYRIDINYL]-2-(4-METHYLPHENYL)-4,5,6,7-TETRAHYDRO-2H-PYRAZOLO[4,3-C]PYRIDINE 4-METHYL-6-[1-(4-METHYLPHENYL)-1H-PYRAZOL-5-YL]-2-[3-(TRIFLUOROMETHYL)PHENYL]-1,2,4-TRIAZINE-3,5(2H,4H)-DIONE 5-[3-CHLORO-5-(TRIFLUOROMETHYL)-2-PYRIDINYL]-2-PHENYL-4,5,6,7-TETRAHYDRO-2H-PYRAZOLO[4,3-C]PYRIDINE

  • 3-(2-Aminoethyl)-1H-pyrazole
  • 2-(1H-pyrazol-5-yl)ethanamine(SALTDATA: FREE)
  • 2-(1H-pyrazol-5-yl)ethanamine
  • 2-(3-Pyrazolyl)ethanamine
  • betazole
  • Ametazole
  • 1H-Pyrazole-3-ethanamine
  • betazole USP/EP/BP
  • 2-(1H-pyrazol-5-yl)ethan-1-amine
  • 105-20-4