9-cis-Retinal
Also known as: (2E,4E,6Z,8E)-3,7-dimethyl-9-(2,6,6-trimethylcyclohex-1-en-1-yl)nona-2,4,6,8-tetraenal, (9Z)-Retinal, (9cis)-Retinal, 9-cis-Retinaldehyde, 9-cis-Vitamin A aldehyde, Isoretinene A, 9-C-Retinal, C031390, EINECS 208-188-8
9-cis-Retinal (CAS 514-85-2) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C20H28O and a molecular weight of 284.436 g/mol. Key properties include a melting point of 56-58ºC(lit.), a boiling point of 421.4±14.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 205.4±12.4 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H312 — Harmful in contact with skin and H315 — Causes skin irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 514-85-2
- Jingsj CID
- J-1958351-8
- Molecular Formula
- C20H28O
- Molecular Weight
- 284.436 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 56-58ºC(lit.) |
|---|---|
| Boiling Point | 421.4±14.0 °C at 760 mmHg |
| Density | 0.9±0.1 g/cm3 |
| Flash Point | 205.4±12.4 °C |
| Exact Mass | 284.214020 |
| PSA | 17.07000 |
| LogP | 6.54 |
| Vapor Pressure | 0.0±1.0 mmHg at 25°C |
| Refractive Index | 1.541 |
| Storage Conditions | -20°C |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H312 — Harmful in contact with skin
- H315 — Causes skin irritation
- H332 — Harmful if inhaled
Activity & Biological Data
| Target | Human Endogenous Metabolite |
|---|---|
| Additional Information | [1]. Kane MA, et al. Binding affinities of CRBPI and CRBPII for 9-cis-retinoids.Biochim Biophys Acta. 2011 May;1810(5):514-8. [2]. Mertz JR, et al. Identification and characterization of a stereospecific human enzyme that catalyzes 9-cis-retinol oxidation. A possible role in 9-cis-retinoic acid formation. J Biol Chem. 1997 May 2;272(18):11744-9. [3]. Kaya KD, et al. Transcriptome-based molecular staging of human stem cell-derived retinal organoids uncovers accelerated photoreceptor differentiation by 9-cis retinal. Mol Vis. 2019 Nov 11;25:663-678. [4]. Parker RO, et al. Normal cone function requires the interphotoreceptor retinoid binding protein. J Neurosci. 2009 Apr 8;29(14):4616-21. |
Customs & Trade Information
| HS Code | 2912299000 |
|---|---|
| Summary | 2912299000. other cyclic aldehydes without other oxygen function. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:5.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 9-cis-Retinal?
The CAS number of 9-cis-Retinal is 514-85-2.
What are the molecular formula and molecular weight of 9-cis-Retinal?
9-cis-Retinal has molecular formula C20H28O and molecular weight 284.436 g/mol.
Is 9-cis-Retinal hazardous?
9-cis-Retinal has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H312 — Harmful in contact with skin; H315 — Causes skin irritation.
What are the upstream and downstream products of 9-cis-Retinal?
For 9-cis-Retinal, Upstream Products: all-trans-Retinal, Retinol, Retinyl acetate; Downstream Products: 13-cis-Retinal, all-trans-Retinal, Retinol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "9-cis-Retinal (CAS 514-85-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1958351-8 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.