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ChemicalBook >> CAS DataBase List >> ethyl 5-(forMylaMino)-1H-pyrazole-4-carboxylate

ethyl 5-(forMylaMino)-1H-pyrazole-4-carboxylate

ethyl 5-(forMylaMino)-1H-pyrazole-4-carboxylate price.
  • $78 - $3664
  • Product name: ethyl 5-(forMylaMino)-1H-pyrazole-4-carboxylate
  • CAS: 31055-19-3
  • MF: C7H9N3O3
  • MW: 183.16
  • EINECS:
  • MDL Number:MFCD21363440
  • Synonyms:Allopurinol Related CoMpound E;ethyl 5-(forMylaMino)-1H-pyrazole-4-carboxylate;Allopurinol Related Compound E (25 mg) (ethyl 5-(formylamino)-1H-pyrazole-4-carboxylate);ethyl 5-forMaMido-1H-pyrazole-4-carboxylate;Allopurinol Impurity 5(Allopurinol EP Impurity E)(Allopurinol USP Related Compound E );Allopurinol EP Impurity E（Allopurinol USP Related Compound E）;Allopurinol EP Imp E;Allopurinol EP Impurity E or Allopurinol USP Related Compound E
Price28 Properties Safety Information Description
28 prices
Selected condition：
Brand
  • aablocks
  • American Custom Chemicals Corporation
  • Biosynth
  • Matrix Scientific
  • Sigma-Aldrich
  • TRC
  • Usbiological
Package
  • 0.002g
  • 5MG
  • 0.005g
  • 0.01g
  • 0.025g
  • 25mg
  • 0.05g
  • a0350050
  • 50mg
  • 100mg
  • 250mg
  • 500mg
  • 1.00g
  • 1g
  • 5.00g
  • 5g
  • 20 mg
  • Manufactureraablocks
  • Product numberAA00C2QJ
  • Product description3-(Formylamino)-1H-pyrazole-4-carboxylic Acid Ethyl Ester 95%
  • Packaging100mg
  • Price$91
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA00C2QJ
  • Product description3-(Formylamino)-1H-pyrazole-4-carboxylic Acid Ethyl Ester 95%
  • Packaging250mg
  • Price$173
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA00C2QJ
  • Product description3-(Formylamino)-1H-pyrazole-4-carboxylic Acid Ethyl Ester 95%
  • Packaging5g
  • Price$1139
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA00C2QJ
  • Product description3-(Formylamino)-1H-pyrazole-4-carboxylic Acid Ethyl Ester 95%
  • Packaging1g
  • Price$463
  • Updated2026-05-28
  • Buy
  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberCHM0292569
  • Product descriptionETHYL-5-(FORMYLAMINO)-1H-PYRAZOLE-4-CARBOXYLATE 95.00%
  • Packaging5MG
  • Price$498.89
  • Updated2021-12-16
  • Buy
  • ManufacturerBiosynth
  • Product numberIA63602
  • Product descriptionAllopurinol impurity E
  • Packaging250mg
  • Price$350
  • Updated2021-12-16
  • Buy
  • ManufacturerBiosynth
  • Product numberIA63602
  • Product descriptionAllopurinol impurity E
  • Packaging500mg
  • Price$600
  • Updated2021-12-16
  • Buy
  • ManufacturerBiosynth
  • Product numberIA63602
  • Product descriptionAllopurinol impurity E
  • Packaging100mg
  • Price$182
  • Updated2021-12-16
  • Buy
  • ManufacturerBiosynth
  • Product numberIA63602
  • Product descriptionAllopurinol impurity E
  • Packaging0.002g
  • Price$250
  • Updated2026-06-04
  • Buy
  • ManufacturerBiosynth
  • Product numberIA63602
  • Product descriptionAllopurinol impurity E
  • Packaging0.005g
  • Price$250
  • Updated2026-06-04
  • Buy
  • ManufacturerBiosynth
  • Product numberIA63602
  • Product descriptionAllopurinol impurity E
  • Packaging50mg
  • Price$120
  • Updated2021-12-16
  • Buy
  • ManufacturerBiosynth
  • Product numberIA63602
  • Product descriptionAllopurinol impurity E
  • Packaging0.05g
  • Price$428.34
  • Updated2026-06-04
  • Buy
  • ManufacturerBiosynth
  • Product numberIA63602
  • Product descriptionAllopurinol impurity E
  • Packaging0.01g
  • Price$250
  • Updated2026-06-04
  • Buy
  • ManufacturerBiosynth
  • Product numberIA63602
  • Product descriptionAllopurinol impurity E
  • Packaging0.025g
  • Price$285.56
  • Updated2026-06-04
  • Buy
  • ManufacturerBiosynth
  • Product numberIA63602
  • Product descriptionAllopurinol impurity E
  • Packaging25mg
  • Price$78
  • Updated2021-12-16
  • Buy
  • ManufacturerMatrix Scientific
  • Product number143970
  • Product descriptionEthyl 5-formamido-1H-pyrazole-4-carboxylate 95%
  • Packaging5g
  • Price$3664
  • Updated2021-12-16
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
aablocks AA00C2QJ 3-(Formylamino)-1H-pyrazole-4-carboxylic Acid Ethyl Ester 95% 100mg $91 2026-05-28 Buy
aablocks AA00C2QJ 3-(Formylamino)-1H-pyrazole-4-carboxylic Acid Ethyl Ester 95% 250mg $173 2026-05-28 Buy
aablocks AA00C2QJ 3-(Formylamino)-1H-pyrazole-4-carboxylic Acid Ethyl Ester 95% 5g $1139 2026-05-28 Buy
aablocks AA00C2QJ 3-(Formylamino)-1H-pyrazole-4-carboxylic Acid Ethyl Ester 95% 1g $463 2026-05-28 Buy
American Custom Chemicals Corporation CHM0292569 ETHYL-5-(FORMYLAMINO)-1H-PYRAZOLE-4-CARBOXYLATE 95.00% 5MG $498.89 2021-12-16 Buy
Biosynth IA63602 Allopurinol impurity E 250mg $350 2021-12-16 Buy
Biosynth IA63602 Allopurinol impurity E 500mg $600 2021-12-16 Buy
Biosynth IA63602 Allopurinol impurity E 100mg $182 2021-12-16 Buy
Biosynth IA63602 Allopurinol impurity E 0.002g $250 2026-06-04 Buy
Biosynth IA63602 Allopurinol impurity E 0.005g $250 2026-06-04 Buy
Biosynth IA63602 Allopurinol impurity E 50mg $120 2021-12-16 Buy
Biosynth IA63602 Allopurinol impurity E 0.05g $428.34 2026-06-04 Buy
Biosynth IA63602 Allopurinol impurity E 0.01g $250 2026-06-04 Buy
Biosynth IA63602 Allopurinol impurity E 0.025g $285.56 2026-06-04 Buy
Biosynth IA63602 Allopurinol impurity E 25mg $78 2021-12-16 Buy
Matrix Scientific 143970 Ethyl 5-formamido-1H-pyrazole-4-carboxylate 95% 5g $3664 2021-12-16 Buy
Next Last

Properties

Melting point :192.5-193.5 °C(Solv: ethanol (64-17-5))
Boiling point :483.2±30.0 °C(Predicted)
Density :1.385±0.06 g/cm3(Predicted)
storage temp. :2-8°C
solubility :DMSO (Slightly), Ethanol (Slightly, Heated), Methanol (Slightly, Heated)
form :powder
pka :10.18±0.50(Predicted)
Major Application :pharmaceutical (small molecule)
InChI :1S/C7H9N3O3/c1-2-13-7(12)5-3-9-10-6(5)8-4-11/h3-4H,2H2,1H3,(H2,8,9,10,11)
InChIKey :VAEIHNPPOAVFAR-UHFFFAOYSA-N
SMILES :[nH]1ncc(c1NC=O)C(=O)OCC

Safety Information

Symbol(GHS): Exclamation Mark (GHS07)
Signal word: Warning
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly after handling.
P271 Use only outdoors or in a well-ventilated area.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352 IF ON SKIN: wash with plenty of soap and water.
P304+P340 IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P312 Call a POISON CENTER or doctor/physician if you feel unwell.
P313 Get medical advice/attention.
P337+P313 IF eye irritation persists: Get medical advice/attention.
P362 Take off contaminated clothing and wash before reuse.
P403+P233 Store in a well-ventilated place. Keep container tightly closed.
P405 Store locked up.
P501 Dispose of contents/container to..…

Description

3-(Formylamino)-1H-pyrazole-4-carboxylic Acid Ethyl Ester (Allopurinol EP Impurity E) is an impurity of Allopurinol (A547300), a pyrazole derivative that has been shown to induce neoplasm immunogenicity.

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Suppliers and manufacturers

J & K SCIENTIFIC LTD. Sinopharm Chemical Reagent Co,Ltd. Quality Control Solutions Ltd. Shanghai Kewel Chemical Co., Ltd. BOC Sciences Tonichem Pharmaceutical Technology Co., Ltd. Amadis Chemical Company Limited Shanghai CR Corporation Limited Chengdu sainate Biological Technology Co., Ltd. Shenzhen Polymeri Biochemical Technology Co., Ltd.