(1,2,6,7,-Tetrahydro-8H-indeno[5,4-b]furan-8-ylidene)acetonitrile
- CAS
- 221530-44-5
- Formula
- C13H11NO
- MW
- 197.23 g/mol
ZX-032095
Impurity reference standards
Ramelteon impurity standards
This page brings together 25 Ramelteon related compounds that analytical teams use to identify, quantify and control impurities in the active ingredient and the finished dosage form. Most entries are process-related impurities, synthesis intermediates and isomers.
25reference materials
Every standard comes with a certificate of analysis. Structure confirmation data, typically NMR, MS and chromatographic purity, is available on request. Laboratories use them to validate related-substance methods, set specification limits under ICH Q3A and Q3B, and identify unknown peaks in stability samples.
All Ramelteon reference materials
1–25 of 25 standards
(S,E)-4-Phenyl-3-(2-(1,2,6,7-tetrahydro-8H-indeno[5,4-b]furan-8-ylidene)acetyl)oxazolidin-2-one
- CAS
- 1149757-29-8
- Formula
- C22H19NO4
- MW
- 361.4 g/mol
ZX-026644
(S)-2-(1,6,7,8-Tetrahydro-2H-indeno[5,4-b] furan-8-yl)acetamide
- CAS
- 221530-38-7
- Formula
- C13H15NO2
- MW
- 217.26 g/mol
ZX-026645
(S)-2-(1,6,7,8-Tetrahydro-2H-indeno[5,4-b]furan-8-yl)acetonitrile
- CAS
- 1185516-79-3
- Formula
- C13H13NO
- MW
- 199.25 g/mol
ZX-032099
(S)-4-Phenyl-3-(2-((S)-1,6,7,8-tetrahydro-2H-indeno[5,4-b]furan-8-yl)acetyl)oxazolidin-2-one
- CAS
- 1149757-30-1
- Formula
- C22H21NO4
- MW
- 363.4 g/mol
ZX-026641
(S)-N-(2-(1,6,7,8-Tetrahydro-2H-indeno[5,4-b]furan-8-yl)ethyl)acetamide
- CAS
- 326793-94-6
- Formula
- C15H19NO2
- MW
- 245.32 g/mol
ZX-026642
(S)-N-(2-(7,8-Dihydro-6H-indeno[5,4-b]furan-8-yl)ethyl)propionamide
- CAS
- 880152-62-5
- Formula
- C16H19NO2
- MW
- 257.33 g/mol
ZX-026647
2-(1,6,7,8-Tetrahydro-2H-indeno[5,4-b]furan-8-yl)ethan-1-amine hydrochloride
- CAS
- 1053239-39-6
- Formula
- C13H18ClNO
- MW
- 239.74 g/mol
ZX-026638
2-[(8S)-2,6,7,8-Tetrahydro-1H-cyclopenta[e][1]benzofuran-8-yl]ethanamine Hydrochloride
- CAS
- 196597-80-5
- Formula
- C13H18ClNO
- MW
- 239.74 g/mol
ZX-032094
2-Isopropyl-4(((N-methyl)amino)methyl)thiazole hydrochloride
- CAS
- 908591-25-3
- Formula
- C8H15ClN2S
- MW
- 206.74 g/mol
ZX-040352
3-(6,7-Dibromo-2,3-dihydrobenzofuran-5-yl)propanoic Acid
- CAS
- 196597-76-9
- Formula
- C11H10Br2O3
- MW
- 350 g/mol
ZX-032098
Bis(2-(1,6,7,8-tetrahydro-2H-indeno[5,4-b]furan-8-yl)ethyl)amine
- CAS
- 1365920-38-2
- Formula
- C26H31NO2
- MW
- 389.5 g/mol
ZX-032097
N-(2-(1,6-Dihydro-2H-indeno[5,4-b]furan-8-yl)ethyl)propionamide
- CAS
- 196597-30-5
- Formula
- C16H19NO2
- MW
- 257.33 g/mol
ZX-032100
N,N'-(((8S,8'S)-1,1',6,6',7,7',8,8'-Octahydro-2H,2'H-[4,6'-biindeno[5,4-b]furan]-8,8'-diyl)bis(ethane-2,1-diyl))dipropionamide
- CAS
- 880152-63-6
- Formula
- C32H40N2O4
- MW
- 516.7 g/mol
ZX-032101
rac-2,3-Dihydro-6-methoxy-1H-indene-1-ethanamine
- CAS
- 108048-37-9
- Formula
- C12H17NO
- MW
- 191.27 g/mol
ZX-044626
Questions
Ramelteon impurities, answered
What Ramelteon reference materials are available?
The catalogue currently lists 25 compounds for Ramelteon. Each product page shows the CAS number where one is assigned, the structure, formula and molecular weight.
What documents come with a Ramelteon impurity standard?
A certificate of analysis travels with every lot. On request we share the characterisation set, usually 1H-NMR, mass spectrum, HPLC purity and IR, and for some materials TGA or water content. Ask for the data before ordering if your QA team needs to review it.
Can Zemixal make a Ramelteon impurity that is not listed?
Often yes. Send the structure, name or CAS number with the quantity you need and our sourcing team checks custom synthesis options, usually from 10 mg up to gram scale, with a quoted lead time.