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ChemicalBook >> CAS DataBase List >> 6,7-Dihydro-5-methyl-5(H)-cyclopentapyrazine

6,7-Dihydro-5-methyl-5(H)-cyclopentapyrazine

6,7-Dihydro-5-methyl-5(H)-cyclopentapyrazine price.
  • $6 - $6718.57
  • Product name: 6,7-Dihydro-5-methyl-5(H)-cyclopentapyrazine
  • CAS: 23747-48-0
  • MF: C8H10N2
  • MW: 134.18
  • EINECS:245-864-1
  • MDL Number:MFCD00040997
  • Synonyms:5-METHYL-6,7-DIHYDROC;5-METHYL-6,7-DIHYDROCYCLOPENTAPYRAZINE;6,7-DIHYDRO-5-METHYL-5H-CYCLOPENTAPYRAZINE;5H-5-METHYL-6,7-DIHYDROCYCLOPENTA[B]PYRAZINE;5H-5-METHYL-6,7-DIHYDROCYCLOPENTAPYRAZINE;5H-Cyclopentapyrazine, 6,7-dihydro-5-methyl-;5-methyl-(5H)-6,7-dihydrocyclo- pentapyrazine;5-Methyl-5H-cyclopenta[b]pyrazine
Price28 Properties Safety Information Description
28 prices
Selected condition：
Brand
  • AK Scientific
  • Alfa Aesar
  • Alichem
  • Ambeed
  • American Custom Chemicals Corporation
  • Apolloscientific
  • Chemenu
  • Chem-Impex
  • Sigma-Aldrich
  • SynQuest Laboratories
  • TCI Chemical
Package
  • 5mL
  • sample-k
  • 1g
  • 5g
  • 10g
  • 25g
  • 100g
  • 1kg
  • 2.5KG
  • ManufacturerAK Scientific
  • Product numberR563
  • Product description5-Methyl-6,7-dihydro-5H-cyclopenta(b)pyrazine
  • Packaging1g
  • Price$21
  • Updated2021-12-16
  • Buy
  • ManufacturerAK Scientific
  • Product numberR563
  • Product description5-Methyl-6,7-dihydro-5H-cyclopenta(b)pyrazine
  • Packaging5g
  • Price$39
  • Updated2021-12-16
  • Buy
  • ManufacturerAK Scientific
  • Product numberJ56415
  • Product description5-Methyl-6,7-dihydro-5H-cyclopenta(b)pyrazine
  • Packaging25g
  • Price$70
  • Updated2021-12-16
  • Buy
  • ManufacturerAlfa Aesar
  • Product numberB21671
  • Product description6,7-Dihydro-5-methylcyclopentapyrazine, 98%
  • Packaging1g
  • Price$33.5
  • Updated2021-12-16
  • Buy
  • ManufacturerAlfa Aesar
  • Product numberB21671
  • Product description6,7-Dihydro-5-methylcyclopentapyrazine, 98%
  • Packaging5g
  • Price$78.6
  • Updated2021-12-16
  • Buy
  • ManufacturerAlfa Aesar
  • Product numberB21671
  • Product description6,7-Dihydro-5-methylcyclopentapyrazine, 98%
  • Packaging25g
  • Price$288
  • Updated2021-12-16
  • Buy
  • ManufacturerAlichem
  • Product number23747480
  • Product description5-Methyl-6,7-dihydro-5H-cyclopenta[b]pyrazine
  • Packaging100g
  • Price$296.4
  • Updated2021-12-16
  • Buy
  • ManufacturerAmbeed
  • Product numberA110503
  • Product description5-Methyl-6,7-dihydro-5H-cyclopenta[b]pyrazine 98%
  • Packaging100g
  • Price$158
  • Updated2021-12-16
  • Buy
  • ManufacturerAmbeed
  • Product numberA110503
  • Product description5-Methyl-6,7-dihydro-5H-cyclopenta[b]pyrazine 98%
  • Packaging25g
  • Price$51
  • Updated2021-12-16
  • Buy
  • ManufacturerAmbeed
  • Product numberA110503
  • Product description5-Methyl-6,7-dihydro-5H-cyclopenta[b]pyrazine 98%
  • Packaging10g
  • Price$25
  • Updated2021-12-16
  • Buy
  • ManufacturerAmbeed
  • Product numberA110503
  • Product description5-Methyl-6,7-dihydro-5H-cyclopenta[b]pyrazine 98%
  • Packaging5g
  • Price$15
  • Updated2021-12-16
  • Buy
  • ManufacturerAmbeed
  • Product numberA110503
  • Product description5-Methyl-6,7-dihydro-5H-cyclopenta[b]pyrazine 98%
  • Packaging1g
  • Price$6
  • Updated2021-12-16
  • Buy
  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberFFG0003023
  • Product description5H-5-METHYL-6,7-DIHYDROCYCLOPENTAPYRAZINE 95.00%
  • Packaging25G
  • Price$1221.24
  • Updated2021-12-16
  • Buy
  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberFFG0003023
  • Product description5H-5-METHYL-6,7-DIHYDROCYCLOPENTAPYRAZINE 95.00%
  • Packaging100G
  • Price$2726.26
  • Updated2021-12-16
  • Buy
  • ManufacturerApolloscientific
  • Product numberOR937238
  • Product description5-Methyl-6,7-dihydro-5H-cyclopenta[b]pyrazine 95%
  • Packaging10g
  • Price$174
  • Updated2021-12-16
  • Buy
  • ManufacturerApolloscientific
  • Product numberOR937238
  • Product description5-Methyl-6,7-dihydro-5H-cyclopenta[b]pyrazine 95%
  • Packaging25g
  • Price$363
  • Updated2021-12-16
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
AK Scientific R563 5-Methyl-6,7-dihydro-5H-cyclopenta(b)pyrazine 1g $21 2021-12-16 Buy
AK Scientific R563 5-Methyl-6,7-dihydro-5H-cyclopenta(b)pyrazine 5g $39 2021-12-16 Buy
AK Scientific J56415 5-Methyl-6,7-dihydro-5H-cyclopenta(b)pyrazine 25g $70 2021-12-16 Buy
Alfa Aesar B21671 6,7-Dihydro-5-methylcyclopentapyrazine, 98% 1g $33.5 2021-12-16 Buy
Alfa Aesar B21671 6,7-Dihydro-5-methylcyclopentapyrazine, 98% 5g $78.6 2021-12-16 Buy
Alfa Aesar B21671 6,7-Dihydro-5-methylcyclopentapyrazine, 98% 25g $288 2021-12-16 Buy
Alichem 23747480 5-Methyl-6,7-dihydro-5H-cyclopenta[b]pyrazine 100g $296.4 2021-12-16 Buy
Ambeed A110503 5-Methyl-6,7-dihydro-5H-cyclopenta[b]pyrazine 98% 100g $158 2021-12-16 Buy
Ambeed A110503 5-Methyl-6,7-dihydro-5H-cyclopenta[b]pyrazine 98% 25g $51 2021-12-16 Buy
Ambeed A110503 5-Methyl-6,7-dihydro-5H-cyclopenta[b]pyrazine 98% 10g $25 2021-12-16 Buy
Ambeed A110503 5-Methyl-6,7-dihydro-5H-cyclopenta[b]pyrazine 98% 5g $15 2021-12-16 Buy
Ambeed A110503 5-Methyl-6,7-dihydro-5H-cyclopenta[b]pyrazine 98% 1g $6 2021-12-16 Buy
American Custom Chemicals Corporation FFG0003023 5H-5-METHYL-6,7-DIHYDROCYCLOPENTAPYRAZINE 95.00% 25G $1221.24 2021-12-16 Buy
American Custom Chemicals Corporation FFG0003023 5H-5-METHYL-6,7-DIHYDROCYCLOPENTAPYRAZINE 95.00% 100G $2726.26 2021-12-16 Buy
Apolloscientific OR937238 5-Methyl-6,7-dihydro-5H-cyclopenta[b]pyrazine 95% 10g $174 2021-12-16 Buy
Apolloscientific OR937238 5-Methyl-6,7-dihydro-5H-cyclopenta[b]pyrazine 95% 25g $363 2021-12-16 Buy
Next Last

Properties

Melting point :121-123 °C
Boiling point :96-99 °C20 mm Hg(lit.)
Density :1.055 g/mL at 25 °C(lit.)
FEMA :3306 | 5H-5-METHYL-6,7-DIHYDROCYCLOPENTA(B)PYRAZINE
refractive index :n20/D 1.527(lit.)
Flash point :174 °F
storage temp. :Inert atmosphere,Room Temperature
pka :1.85±0.40(Predicted)
form :clear liquid
color :Colorless to Light yellow to Light orange
Odor :nutty, roasted odor
Odor Type :earthy
Water Solubility :insoluble
JECFA Number :781
InChIKey :YZEFQPIMXZVPKP-UHFFFAOYSA-N
LogP :1.33
NIST Chemistry Reference :5H-5-methyl-6,7-dihydrocyclopentapyrazine(23747-48-0)
EPA Substance Registry System :5H-Cyclopentapyrazine, 6,7-dihydro-5-methyl- (23747-48-0)

Safety Information

Symbol(GHS): GHS hazard pictograms
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 GHS hazard pictograms P264, P280, P302+P352, P321,P332+P313, P362
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning GHS hazard pictograms P264, P280, P305+P351+P338,P337+P313P
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning GHS hazard pictograms
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.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Description

5H-5-Methyl-6,7-dihydrocyclopenta(-b)pyrazine has an earthy, baked potato, peanut, roasted odor. It may be prepared from condensation of 2-hydroxy-3-methyl-2-cyclopentene-l-one and ethylene diamine; by condensing a cyclopentenolone with alkylenediamines, or alternatively, an aliphatic α-diketone with 1,2-diamino cyclopentane; the resulting product is dehydrogenated in the presence of palladium over activated charcoal or copper chromite.

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Suppliers and manufacturers

Henan Fengda Chemical Co., Ltd
6,7-Dihydro-5-methyl-5(H)-cyclopentapyrazine
$1.10 /1000kg
6,7-Dihydro-5-methyl-5(H)-cyclopentapyrazine CAS:23747-48-0
career henan chemical co
6,7-Dihydro-5-methyl-5(H)-cyclopentapyrazine
$100.00 /25KG
6,7-Dihydro-5-methyl-5(H)-cyclopentapyrazine CAS:23747-48-0
Shaanxi Dideu Medichem Co. Ltd
6,7-Dihydro-5-methyl-5(H)-cyclopentapyrazine
$0.00 /1KG
6,7-Dihydro-5-methyl-5(H)-cyclopentapyrazine CAS:23747-48-0
Hubei Jusheng Technology Co.,Ltd.
Xiamen AmoyChem Co., Ltd
Chongqing Chemdad Co., Ltd
CONIER CHEM AND PHARMA LIMITED
Neostar United (Changzhou) Industrial Co., Ltd.
SIMAGCHEM CORP
Hebei Binshare New Material Co. Ltd