(2E,4E,6E,8E)-3,7-dimethyl-9-(2,6,6-trimethylcyclohexa-1,3-dien-1-yl)nona-2,4,6,8-tetraenoic acid

Modify Date: 2026-06-30 12:11:21

(2E,4E,6E,8E)-3,7-dimethyl-9-(2,6,6-trimethylcyclohexa-1,3-dien-1-yl)nona-2,4,6,8-tetraenoic acid structure	Common Name	(2E,4E,6E,8E)-3,7-dimethyl-9-(2,6,6-trimethylcyclohexa-1,3-dien-1-yl)nona-2,4,6,8-tetraenoic acid
	CAS Number	4159-20-0	Molecular Weight	298.41900
	Density	1.027g/cm3	Boiling Point	468.2ºC at 760mmHg
	Molecular Formula	C₂₀H₂₆O₂	Melting Point	N/A
	MSDS	N/A	Flash Point	355.1ºC

This table lists Chinese names, IUPAC names and various aliases of this chemical substance.

Name	(2E,4E,6E,8E)-3,7-dimethyl-9-(2,6,6-trimethylcyclohexa-1,3-dien-1-yl)nona-2,4,6,8-tetraenoic acid
Synonym	More Synonyms

This table shows physicochemical parameters including melting point, boiling point, density, solubility and optical rotation. Missing data is marked as N/A.

Density	1.027g/cm3
Boiling Point	468.2ºC at 760mmHg
Molecular Formula	C₂₀H₂₆O₂
Molecular Weight	298.41900
Flash Point	355.1ºC
Exact Mass	298.19300
PSA	37.30000
LogP	5.37860
InChIKey	SYESMXTWOAQFET-YCNIQYBTSA-N
SMILES	CC(C=CC1=C(C)C=CCC1(C)C)=CC=CC(C)=CC(=O)O

This table summarizes toxicological test data, acute & chronic toxicity and ecological hazard parameters for this chemical.

CHEMICAL IDENTIFICATION

RTECS NUMBER :: VH6505650

CHEMICAL NAME :: Retinoic acid, 3,4-didehydro-

CAS REGISTRY NUMBER :: 4159-20-0

LAST UPDATED :: 199806

DATA ITEMS CITED :: 1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 500 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: GWXXBX German Offenlegungsschrift Patent Document. (U.S. Patent and Trademark Office, Foreign Patents, Washington, DC 20231) Volume(issue)/page/year: #2128462

This table lists upstream starting materials and downstream derivative products related to this chemical.

Precursor 0
DownStream 2
CAS#:79-80-1 Dehydroretinol CAS#:472-87-7 dehydroretinaldehyde

This table collects all English aliases, systematic names and CAS‑related synonyms of the compound.

Vitamin A2 acid

3-Dehydroretinoic acid (6CI,7CI)

3,4-didehydroretinoic acid

Vitamin A2 saeure

all-trans-3,4-Didehydro Retinoic Acid

Retinoic acid,3,4-didehydro

all-trans-Vitamin A2 Acid

3-Dehydroretinoic Acid

3,4-didehyroretinoic acid

(7E,9E,11E,13E)-9,13-dimethyl-7-(1,1,5-trimethyl-3,5-cyclohexadien-6-yl)-7,9,11,13-nonatetraen-15-oic acid

Ro 8-7057

Vitamin A2 saeure [German]

This section contains frequently‑asked‑questions about this compound, including basic parameters, properties, storage conditions and corresponding answers.

Q: What are the downstream products of (2E,4E,6E,8E)-3,7-dimethyl-9-(2,6,6-trimethylcyclohexa-1,3-dien-1-yl)nona-2,4,6,8-tetraenoic acid?

A: Related downstream products(CAS) of (2E,4E,6E,8E)-3,7-dimethyl-9-(2,6,6-trimethylcyclohexa-1,3-dien-1-yl)nona-2,4,6,8-tetraenoic acid: 79-80-1;472-87-7.

Q: What is the boiling point of (2E,4E,6E,8E)-3,7-dimethyl-9-(2,6,6-trimethylcyclohexa-1,3-dien-1-yl)nona-2,4,6,8-tetraenoic acid?

A: Boiling point of (2E,4E,6E,8E)-3,7-dimethyl-9-(2,6,6-trimethylcyclohexa-1,3-dien-1-yl)nona-2,4,6,8-tetraenoic acid is 468.2ºC at 760mmHg.

Q: What is the molecular formula of (2E,4E,6E,8E)-3,7-dimethyl-9-(2,6,6-trimethylcyclohexa-1,3-dien-1-yl)nona-2,4,6,8-tetraenoic acid?

A: Molecular formula of (2E,4E,6E,8E)-3,7-dimethyl-9-(2,6,6-trimethylcyclohexa-1,3-dien-1-yl)nona-2,4,6,8-tetraenoic acid is C20H26O2.

Q: What is the English name of (2E,4E,6E,8E)-3,7-dimethyl-9-(2,6,6-trimethylcyclohexa-1,3-dien-1-yl)nona-2,4,6,8-tetraenoic acid?

A: The English name of (2E,4E,6E,8E)-3,7-dimethyl-9-(2,6,6-trimethylcyclohexa-1,3-dien-1-yl)nona-2,4,6,8-tetraenoic acid is (2E,4E,6E,8E)-3,7-dimethyl-9-(2,6,6-trimethylcyclohexa-1,3-dien-1-yl)nona-2,4,6,8-tetraenoic acid.

Q: What is the LogP of (2E,4E,6E,8E)-3,7-dimethyl-9-(2,6,6-trimethylcyclohexa-1,3-dien-1-yl)nona-2,4,6,8-tetraenoic acid?

A: LogP of (2E,4E,6E,8E)-3,7-dimethyl-9-(2,6,6-trimethylcyclohexa-1,3-dien-1-yl)nona-2,4,6,8-tetraenoic acid is 5.37860.

Q: What is the SMILES notation of (2E,4E,6E,8E)-3,7-dimethyl-9-(2,6,6-trimethylcyclohexa-1,3-dien-1-yl)nona-2,4,6,8-tetraenoic acid?

A: SMILES notation of (2E,4E,6E,8E)-3,7-dimethyl-9-(2,6,6-trimethylcyclohexa-1,3-dien-1-yl)nona-2,4,6,8-tetraenoic acid is CC(C=CC1=C(C)C=CCC1(C)C)=CC=CC(C)=CC(=O)O.

Q: What is the polar surface area (PSA) of (2E,4E,6E,8E)-3,7-dimethyl-9-(2,6,6-trimethylcyclohexa-1,3-dien-1-yl)nona-2,4,6,8-tetraenoic acid?

A: Polar surface area (PSA) of (2E,4E,6E,8E)-3,7-dimethyl-9-(2,6,6-trimethylcyclohexa-1,3-dien-1-yl)nona-2,4,6,8-tetraenoic acid is 37.30000.

Q: What is the InChIKey of (2E,4E,6E,8E)-3,7-dimethyl-9-(2,6,6-trimethylcyclohexa-1,3-dien-1-yl)nona-2,4,6,8-tetraenoic acid?

A: InChIKey of (2E,4E,6E,8E)-3,7-dimethyl-9-(2,6,6-trimethylcyclohexa-1,3-dien-1-yl)nona-2,4,6,8-tetraenoic acid is SYESMXTWOAQFET-YCNIQYBTSA-N.

Q: What is the molecular weight of (2E,4E,6E,8E)-3,7-dimethyl-9-(2,6,6-trimethylcyclohexa-1,3-dien-1-yl)nona-2,4,6,8-tetraenoic acid?

A: Molecular weight of (2E,4E,6E,8E)-3,7-dimethyl-9-(2,6,6-trimethylcyclohexa-1,3-dien-1-yl)nona-2,4,6,8-tetraenoic acid is 298.41900.

Q: What is the CAS number of (2E,4E,6E,8E)-3,7-dimethyl-9-(2,6,6-trimethylcyclohexa-1,3-dien-1-yl)nona-2,4,6,8-tetraenoic acid?

A: CAS number of (2E,4E,6E,8E)-3,7-dimethyl-9-(2,6,6-trimethylcyclohexa-1,3-dien-1-yl)nona-2,4,6,8-tetraenoic acid is 4159-20-0.

This table lists manufacturers and suppliers of this compound, including vendor names and product supply reference information.

Shanghai Nianxing Industrial Co., Ltd

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(2E,4E,6E,8E)-3,7-dimethyl-9-(2,6,6-trimethylcyclohexa-1,3-dien-1-yl)nona-2,4,6,8-tetraenoic acid

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Chemical & Physical Properties

Toxicological Information

CHEMICAL IDENTIFICATION

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

Precursor & DownStream

Synonyms

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The content on this webpage is sourced from various professional data sources. If you have any questions or concerns regarding the content, please feel free to contact service1@chemsrc.com.