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ChemicalBook >> Carbamic acid, [4(S)-(hydroxymethyl)-2-cyclopenten-1-yl]-1,1-dimethylethyl ester, (1R-cis)-

Carbamic acid, [4(S)-(hydroxymethyl)-2-cyclopenten-1-yl]-1,1-dimethylethyl ester, (1R-cis)-

Carbamic acid, [4(S)-(hydroxymethyl)-2-cyclopenten-1-yl]-1,1-dimethylethyl ester, (1R-cis)- price.
  • $67 - $4959
  • Product name: Carbamic acid, [4(S)-(hydroxymethyl)-2-cyclopenten-1-yl]-1,1-dimethylethyl ester, (1R-cis)-
  • CAS: 168960-18-7
  • MF: C11H19NO3
  • MW: 213.27
  • EINECS:
  • MDL Number:MFCD01632105
  • Synonyms:TERT-BUTYL CIS-[4(S)-(HYDROXYMETHYL)CYCLOPENT-2-EN-1(R)-YL]CARBAMATE;(1R,4S)-N-(tert-Butyloxycarbonyl)-1-amino-4-(hydroxymethyl)-2-cyclopentene;1-((1R,4S)-4-(Hydroxymethyl)cyclopent-2-en-1-yl)-2-methylpropan-2-yl carbamate;Carbamic acid, [(1R,4S)-4-(hydroxymethyl)-2-cyclopenten-1-yl]-, 1,1-;TERT-BUTYL (1R,4S)-4-(HYDROXYMETHYL)CYCLOPENT-2-ENYLCARBAMATE;tert-Butyl ((1R,4S)-4-(hydroxymethyl)cyclopent-2-en-1-yl)carbamate;N-[(1R,4S)-4-(Hydroxymethyl)-2-cyclopenten-1-yl]-carbamic Acid 1,1-Dimethylethyl Ester;Carbamic acid, N-[(1R,4S)-4-(hydroxymethyl)-2-cyclopenten-1-yl]-, 1,1-dimethylethyl ester
Price19 Properties Safety Information Description
19 prices
Selected condition：
Brand
  • aablocks
  • Abosyn
  • Ambeed
  • American Custom Chemicals Corporation
  • Chemenu
  • Crysdot
  • TRC
Package
  • 5MG
  • 50mg
  • 100mg
  • 250mg
  • 0.25g
  • 500mg
  • 1g
  • 2.5g
  • 5g
  • 10g
  • Manufactureraablocks
  • Product numberAA001YB9
  • Product descriptiontert-Butyl ((1R，4S)-4-(hydroxymethyl)cyclopent-2-en-1-yl)carbamate 95%
  • Packaging50mg
  • Price$457
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA001YB9
  • Product descriptiontert-Butyl ((1R，4S)-4-(hydroxymethyl)cyclopent-2-en-1-yl)carbamate 95%
  • Packaging250mg
  • Price$748
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA001YB9
  • Product descriptiontert-Butyl ((1R，4S)-4-(hydroxymethyl)cyclopent-2-en-1-yl)carbamate 95%
  • Packaging500mg
  • Price$1064
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA001YB9
  • Product descriptiontert-Butyl ((1R，4S)-4-(hydroxymethyl)cyclopent-2-en-1-yl)carbamate 95%
  • Packaging1g
  • Price$1305
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA001YB9
  • Product descriptiontert-Butyl ((1R，4S)-4-(hydroxymethyl)cyclopent-2-en-1-yl)carbamate 95%
  • Packaging100mg
  • Price$583
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA001YB9
  • Product descriptiontert-Butyl ((1R，4S)-4-(hydroxymethyl)cyclopent-2-en-1-yl)carbamate 95%
  • Packaging2.5g
  • Price$2369
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA001YB9
  • Product descriptiontert-Butyl ((1R，4S)-4-(hydroxymethyl)cyclopent-2-en-1-yl)carbamate 95%
  • Packaging5g
  • Price$3408
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA001YB9
  • Product descriptiontert-Butyl ((1R，4S)-4-(hydroxymethyl)cyclopent-2-en-1-yl)carbamate 95%
  • Packaging10g
  • Price$4959
  • Updated2026-05-28
  • Buy
  • ManufacturerAbosyn
  • Product number61-6002
  • Product descriptiontert-butyl((1R,4S)-4-(hydroxymethyl)cyclopent-2-en-1-yl)carbamate 95%
  • Packaging0.25g
  • Price$2000
  • Updated2021-12-16
  • Buy
  • ManufacturerAmbeed
  • Product numberA281237
  • Product descriptiontert-Butyl((1R,4S)-4-(hydroxymethyl)cyclopent-2-en-1-yl)carbamate 97%
  • Packaging1g
  • Price$268
  • Updated2021-12-16
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  • ManufacturerAmbeed
  • Product numberA281237
  • Product descriptiontert-Butyl((1R,4S)-4-(hydroxymethyl)cyclopent-2-en-1-yl)carbamate 97%
  • Packaging100mg
  • Price$67
  • Updated2021-12-16
  • Buy
  • ManufacturerAmbeed
  • Product numberA281237
  • Product descriptiontert-Butyl((1R,4S)-4-(hydroxymethyl)cyclopent-2-en-1-yl)carbamate 97%
  • Packaging250mg
  • Price$105
  • Updated2021-12-16
  • Buy
  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberCCH0008224
  • Product descriptionTERT-BUTYL CIS-[(4S)-(HYDROXYMETHYL)CYCLOPENT-2-EN-1(R)-YL]CARBAMATE 95.00%
  • Packaging5MG
  • Price$499.27
  • Updated2021-12-16
  • Buy
  • ManufacturerChemenu
  • Product numberCM250203
  • Product descriptiontert-Butyl ((1R,4S)-4-(hydroxymethyl)cyclopent-2-en-1-yl)carbamate 97%
  • Packaging250mg
  • Price$80
  • Updated2026-05-26
  • Buy
  • ManufacturerChemenu
  • Product numberCM250203
  • Product descriptiontert-Butyl ((1R,4S)-4-(hydroxymethyl)cyclopent-2-en-1-yl)carbamate 97%
  • Packaging1g
  • Price$254
  • Updated2026-05-26
  • Buy
  • ManufacturerCrysdot
  • Product numberCD13020834
  • Product descriptiontert-Butyl ((1R,4S)-4-(hydroxymethyl)cyclopent-2-en-1-yl)carbamate 97%
  • Packaging1g
  • Price$594
  • Updated2026-05-27
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
aablocks AA001YB9 tert-Butyl ((1R，4S)-4-(hydroxymethyl)cyclopent-2-en-1-yl)carbamate 95% 50mg $457 2026-05-28 Buy
aablocks AA001YB9 tert-Butyl ((1R，4S)-4-(hydroxymethyl)cyclopent-2-en-1-yl)carbamate 95% 250mg $748 2026-05-28 Buy
aablocks AA001YB9 tert-Butyl ((1R，4S)-4-(hydroxymethyl)cyclopent-2-en-1-yl)carbamate 95% 500mg $1064 2026-05-28 Buy
aablocks AA001YB9 tert-Butyl ((1R，4S)-4-(hydroxymethyl)cyclopent-2-en-1-yl)carbamate 95% 1g $1305 2026-05-28 Buy
aablocks AA001YB9 tert-Butyl ((1R，4S)-4-(hydroxymethyl)cyclopent-2-en-1-yl)carbamate 95% 100mg $583 2026-05-28 Buy
aablocks AA001YB9 tert-Butyl ((1R，4S)-4-(hydroxymethyl)cyclopent-2-en-1-yl)carbamate 95% 2.5g $2369 2026-05-28 Buy
aablocks AA001YB9 tert-Butyl ((1R，4S)-4-(hydroxymethyl)cyclopent-2-en-1-yl)carbamate 95% 5g $3408 2026-05-28 Buy
aablocks AA001YB9 tert-Butyl ((1R，4S)-4-(hydroxymethyl)cyclopent-2-en-1-yl)carbamate 95% 10g $4959 2026-05-28 Buy
Abosyn 61-6002 tert-butyl((1R,4S)-4-(hydroxymethyl)cyclopent-2-en-1-yl)carbamate 95% 0.25g $2000 2021-12-16 Buy
Ambeed A281237 tert-Butyl((1R,4S)-4-(hydroxymethyl)cyclopent-2-en-1-yl)carbamate 97% 1g $268 2021-12-16 Buy
Ambeed A281237 tert-Butyl((1R,4S)-4-(hydroxymethyl)cyclopent-2-en-1-yl)carbamate 97% 100mg $67 2021-12-16 Buy
Ambeed A281237 tert-Butyl((1R,4S)-4-(hydroxymethyl)cyclopent-2-en-1-yl)carbamate 97% 250mg $105 2021-12-16 Buy
American Custom Chemicals Corporation CCH0008224 TERT-BUTYL CIS-[(4S)-(HYDROXYMETHYL)CYCLOPENT-2-EN-1(R)-YL]CARBAMATE 95.00% 5MG $499.27 2021-12-16 Buy
Chemenu CM250203 tert-Butyl ((1R,4S)-4-(hydroxymethyl)cyclopent-2-en-1-yl)carbamate 97% 250mg $80 2026-05-26 Buy
Chemenu CM250203 tert-Butyl ((1R,4S)-4-(hydroxymethyl)cyclopent-2-en-1-yl)carbamate 97% 1g $254 2026-05-26 Buy
Crysdot CD13020834 tert-Butyl ((1R,4S)-4-(hydroxymethyl)cyclopent-2-en-1-yl)carbamate 97% 1g $594 2026-05-27 Buy
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Properties

Boiling point :338.8±31.0 °C(Predicted)
Density :1.09±0.1 g/cm3(Predicted)
storage temp. :2-8°C
solubility :DMSO; Methanol
pka :12.06±0.40(Predicted)
form :Oil
color :Yellow

Safety Information

Symbol(GHS):
Signal word:
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H412 Harmful to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 3 P273, P501
Precautionary statements:
P273 Avoid release to the environment.
P501 Dispose of contents/container to..…

Description

N-?[(1R,?4S)?-?4-?(Hydroxymethyl)?-?2-?cyclopenten-?1-?yl]?-carbamic Acid 1,?1-?Dimethylethyl Ester is an intermediate in synthesizing ent-Abacavir (Abacavir EP Impurity A) (A105015), an enatiomer of Abacavir (A105000). Abacavir is a carbocyclic 2''-deoxyguanosine nucleoside reverse transcriptase inhibitor and an anti-HIV drug used to treat HIV infection (1). Intracellular enzymes convert Abacavir to its active form, carbovir-triphosphate (CBV-TP), which then selectively inhibits HIV reverse transcriptase by incorporating into viral DNA (2). Abacavir is metabolized in the liver by uridine diphosphate glucuronyltransferase and alcohol dehydrogenase resulting in inactive glucuronide and carboxylate metabolites, respectively.

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