![(1,2,6,7,-Tetrahydro-8H-indeno[5,4-b]furan-8-ylidene)acetonitrile chemical structure](/media/structures/TUFWVKLKUFXARX-BJMVGYQFSA-N.svg)
(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
VQ-033436
Impurity reference standards
Ramelteon impurities & reference standards
Characterised Ramelteon impurities, degradation products and related compounds for analytical method development, validation, QC release and regulatory filings.
34reference materials
2isotope-labelled
COAHPLC · NMR · MS on request
![(R)-2-(1,6,7,8-Tetrahydro-2H-Indeno[5,4-b]Furan-8-yl)Acetic Acid chemical structure](/media/structures/STJFPPKIYLSEKU-SECBINFHSA-N.svg)
(R)-2-(1,6,7,8-Tetrahydro-2H-Indeno[5,4-b]Furan-8-yl)Acetic Acid
- CAS
- 1092507-03-3
- Formula
- C13H14O3
- MW
- 218.25 g/mol
VQ-044340
![(R)-2-(1,6,7,8-Tetrahydro-2H-indeno[5,4-b]furan-8-yl)ethan-1-amine Hydrochloride chemical structure](/media/structures/PTRBVFJPGFTDDU-HNCPQSOCSA-N.svg)
(R)-2-(1,6,7,8-Tetrahydro-2H-indeno[5,4-b]furan-8-yl)ethan-1-amine Hydrochloride
- CAS
- 1174496-11-7
- Formula
- C13H18ClNO
- MW
- 239.74 g/mol
VQ-041822
![(S,E)-4-Phenyl-3-(2-(1,2,6,7-tetrahydro-8H-indeno[5,4-b]furan-8-ylidene)acetyl)oxazolidin-2-one chemical structure](/media/structures/KGLWTOGZPHWWHW-GOSISDBHSA-N.svg)
(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
VQ-027736
![(S)-2-(1,6,7,8-Tetrahydro-2H-indeno[5,4-b] furan-8-yl)acetamide chemical structure](/media/structures/MNLUHVGGNMUGDD-VIFPVBQESA-N.svg)
(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
VQ-027737
![(S)-2-(1,6,7,8-Tetrahydro-2H-indeno[5,4-b]furan-8-yl)acetonitrile chemical structure](/media/structures/WPIVLYZNFICYFP-JTQLQIEISA-N.svg)
(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
VQ-033440
![(S)-2-(2,6,7,8-Tetrahydro-1H-indeno[5,4-b]furan-8-yl)acetic acid chemical structure](/media/structures/STJFPPKIYLSEKU-VIFPVBQESA-N.svg)
(S)-2-(2,6,7,8-Tetrahydro-1H-indeno[5,4-b]furan-8-yl)acetic acid
- CAS
- 1092507-02-2
- Formula
- C13H14O3
- MW
- 218.25 g/mol
VQ-035153
![(S)-4-Phenyl-3-(2-((S)-1,6,7,8-tetrahydro-2H-indeno[5,4-b]furan-8-yl)acetyl)oxazolidin-2-one chemical structure](/media/structures/QZQZKOLIBWKGIP-FUHWJXTLSA-N.svg)
(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
VQ-027733
(S)-5-Chloro-N-(3-(5-chlorothiophene-2-carboxamido)-2-hydroxypropyl)-N-(4-(3-oxomorpholino)phenyl)th
- CAS
- 2204368-63-6
- Formula
- C23H21Cl2N3O5S2
- MW
- 554.5 g/mol
VQ-044878
![(S)-N-(2-(1,6,7,8-Tetrahydro-2H-indeno[5,4-b]furan-8-yl)ethyl)acetamide chemical structure](/media/structures/SDSGISCYQWUIMI-LBPRGKRZSA-N.svg)
(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
VQ-027734
![(S)-N-(2-(7,8-Dihydro-6H-indeno[5,4-b]furan-8-yl)ethyl)propionamide chemical structure](/media/structures/MBBNFGRNNUHFSM-LBPRGKRZSA-N.svg)
(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
VQ-027739
![2-(1,6,7,8-Tetrahydro-2H-indeno[5,4-b]furan-8-yl)acetamide chemical structure](/media/structures/MNLUHVGGNMUGDD-UHFFFAOYSA-N.svg)
2-(1,6,7,8-Tetrahydro-2H-indeno[5,4-b]furan-8-yl)acetamide
- CAS
- 1053239-38-5
- Formula
- C13H15NO2
- MW
- 217.26 g/mol
VQ-044014
![2-(1,6,7,8-Tetrahydro-2H-indeno[5,4-b]furan-8-yl)Acetonitrile chemical structure](/media/structures/WPIVLYZNFICYFP-UHFFFAOYSA-N.svg)
2-(1,6,7,8-Tetrahydro-2H-indeno[5,4-b]furan-8-yl)Acetonitrile
- CAS
- 1217272-33-7
- Formula
- C13H13NO
- MW
- 199.25 g/mol
VQ-044341
![2-(1,6,7,8-Tetrahydro-2H-indeno[5,4-b]furan-8-yl)ethan-1-amine hydrochloride chemical structure](/media/structures/PTRBVFJPGFTDDU-UHFFFAOYSA-N.svg)
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
VQ-027730
![2-[(8S)-2,6,7,8-Tetrahydro-1H-cyclopenta[e][1]benzofuran-8-yl]ethanamine Hydrochloride chemical structure](/media/structures/PTRBVFJPGFTDDU-PPHPATTJSA-N.svg)
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
VQ-033435
3-(6,7-Dibromo-2,3-dihydrobenzofuran-5-yl)propanoic Acid
- CAS
- 196597-76-9
- Formula
- C11H10Br2O3
- MW
- 350 g/mol
VQ-033439
![Bis(2-(1,6,7,8-tetrahydro-2H-indeno[5,4-b]furan-8-yl)ethyl)amine chemical structure](/media/structures/CRGFKLZOBJUOCB-UHFFFAOYSA-N.svg)
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
VQ-033438
![N-(2-(1,6-Dihydro-2H-indeno[5,4-b]furan-8-yl)ethyl)propionamide chemical structure](/media/structures/QQSNPUATYPICGA-UHFFFAOYSA-N.svg)
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
VQ-033441
![N-(2-(1,6,7,8-Tetrahydro-2H-indeno[5,4-b]furan-8-yl)ethyl)acetamide chemical structure](/media/structures/SDSGISCYQWUIMI-UHFFFAOYSA-N.svg)
N-(2-(1,6,7,8-Tetrahydro-2H-indeno[5,4-b]furan-8-yl)ethyl)acetamide
- CAS
- 196597-16-7
- Formula
- C15H19NO2
- MW
- 245.32 g/mol
VQ-041823
![N-(2-(7,8-Dihydro-6H-indeno[5,4-b]furan-8-yl)ethyl)propionamide chemical structure](/media/structures/MBBNFGRNNUHFSM-UHFFFAOYSA-N.svg)
N-(2-(7,8-Dihydro-6H-indeno[5,4-b]furan-8-yl)ethyl)propionamide
- CAS
- 1252018-55-5
- Formula
- C16H19NO2
- MW
- 257.33 g/mol
VQ-044015
![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 chemical structure](/media/structures/ZBDLGWKZIULXAP-IMFNMPFLSA-N.svg)
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
VQ-033442
FAQs — Ramelteon impurities
Which Ramelteon impurities do you supply?
We list 34 Ramelteon-related reference materials, including process impurities, degradation products, stable-isotope-labelled standards and related compounds. Each is supplied with a COA, and characterisation data (HPLC, 1H-NMR, MS, IR) can be provided on request.
What are Ramelteon impurity standards used for?
They are used for analytical method development and validation, impurity identification and quantification, forced-degradation and stability studies, and to support ANDA, DMF and other regulatory submissions under ICH Q3A/Q3B (and ICH M7 for mutagenic impurities).
Can you synthesise a Ramelteon impurity that is not listed?
Yes. Our custom synthesis service can prepare and characterise unlisted impurities, metabolites and labelled analogues from milligram to gram scale. Share the structure or name and required quantity for a quotation.
Request Ramelteon impurity standards
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