Skip to Content
MilliporeSigma
All Photos(2)

Key Documents

View All Documentation

R7632

Sigma-Aldrich

Retinol

Retinol
1 of 1 reviewers received a sample product or took part in a promotion

synthetic, ≥95% (HPLC), (Powder or Powder with Lumps)

Synonym(s):

Axerophthol, Vitamin A, Vitamin A alcohol, Vitamin A1, all-trans-3,7-Dimethyl-9-(2,6,6-trimethyl-1-cyclohexen-1-yl)-2,4,6,8-nonatetraen-1-ol

Sign Into View Organizational & Contract Pricing

Select a Size

25 MG
$57.20
100 MG
$81.30
250 MG
$181.00
500 MG
$259.00
1 G
$401.00

$57.20

Estimated to ship onMarch 28, 2025

Request a Bulk Order
All Photos(2)

Select a Size

Change View
25 MG
$57.20
100 MG
$81.30
250 MG
$181.00
500 MG
$259.00
1 G
$401.00

About This Item

Empirical Formula (Hill Notation):
C20H30O
CAS Number:
68-26-8
Molecular Weight:
286.45
Beilstein/REAXYS Number:
403040
EC Number:
200-683-7
MDL number:
MFCD00001552
UNSPSC Code:
12352205
eCl@ss:
34058018
PubChem Substance ID:
24899395
NACRES:
NA.79

$57.20

Estimated to ship onMarch 28, 2025

Request a Bulk Order

biological source

synthetic

Quality Level

200

assay

≥95% (HPLC)

form

(Powder or Powder with Lumps)

specific activity

~2700 U/mg

technique(s)

HPLC: suitable

color

yellow to very dark yellow, to Very Dark Orange

mp

61-63 °C (lit.)

shipped in

dry ice

storage temp.

−20°C

SMILES string

CC1(C)C(/C=C/C(C)=C/C=C/C(C)=C/CO)=C(C)CCC1

InChI

1S/C20H30O/c1-16(8-6-9-17(2)13-15-21)11-12-19-18(3)10-7-14-20(19,4)5/h6,8-9,11-13,21H,7,10,14-15H2,1-5H3/b9-6+,12-11+,16-8+,17-13+

InChI key

FPIPGXGPPPQFEQ-OVSJKPMPSA-N

Looking for similar products? Visit Product Comparison Guide

Related Categories

General description

Retinol or vitamin A alcohol is the main circulating form of vitamin A. It is not biologically active. Retinol or all-trans-retinol is a 20-carbon molecule with cyclohexenyl ring, a side chain with four double bonds (in trans configuration), and an alcohol end group.[1]

Application

Retinol has been used:
  • for the synthesis of all-trans-retinoic acid in HepG2 cells[2]
  • to study the effect of retinol on the growth of murine normal colonic cells cultured as organoids[3]
  • as a standard for determination of vitamin A in cells[4]
  • as a component of chemically defined medium for testis organ culture and spermatogenesis in vitro.[5]

Biochem/physiol Actions

Retinol and its derivatives exhibit anti-aging properties. In addition, it also acts as an anti-wrinkle agent. However, due to its photoinstability and skin irritation potency, it is not widely used in cosmetic formulations.[6] Retinol is used in the treatment of dermatoses including photoaging. Its deficiency is associated with the development of xerosis and follicular hyperkeratosis.[1]
Retinol works as a precursor of active retinoids. It is converted to retinaldehyde and subsequently to retinoic acid. All-trans and 9-cis-retinoic acid are the ligands for nuclear receptors, retinoic acid receptors (RARs) and retinoid X receptors (RXRs). These receptors are transcriptional regulators of various genes.[7]

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.
Light protecting glass vial.

Pictograms

Health hazardExclamation mark
GHS08,GHS07

signalword

Danger

Hazard Classifications

Aquatic Chronic 4 - Eye Irrit. 2 - Repr. 1B - Skin Sens. 1

Storage Class

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

wgk_germany

WGK 1

ppe

dust mask type N95 (US), Eyeshields, Gloves

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
BCCL8551
BCCL7122
BCCL1179
BCCM5486
BCCL6971

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Insulin regulates retinol dehydrogenase expression and all-trans-retinoic acid biosynthesis through FoxO1.
Obrochta KM et al.
The Journal of Biological Chemistry, 290, 7259-7259 (2015)
Retinol Promotes In Vitro Growth of Proximal Colon Organoids through a Retinoic Acid-Independent Mechanism.
Matsumoto T et al.
PLoS ONE, 11, e0162049-e0162049 (2016)
In vitro mouse spermatogenesis with an organ culture method in chemically defined medium.
Sanjo H, et al.
PLoS ONE, 13 (2018)
Yuanchao Li et al.
The journal of headache and pain, 17, 49-49 (2016-05-07)
As a complex nervous system disease, migraine causes severe healthy and social issues worldwide. Valproate (VPA) is a widely used treatment agent against seizures and bipolar disorder, and its function to alleviate damage due to migraine has also been verified
Understanding the physiological role of retinol-binding protein in vitamin A metabolism using transgenic and knockout mouse models.
Quadro L et al.
Molecular Aspects of Medicine, 24, 421-421 (2003)
View All Related Papers

Protocols

HPLC Analysis of Vitamins, Fat Soluble (A and E), on SUPELCOSIL™ LC-18

Separation of δ-Tocopherol, analytical standard; Retinyl acetate; (+)-γ-Tocopherol; α-Tocopherol, ≥95.5%; Retinol; Vitamin A (acetate), meets USP testing specifications.

1 Review This action will navigate to reviews.

Questions

1–2 of 2 Questions  

  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

      Helpful?

  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

      Helpful?

Reviews

1 of 1 reviewers received a sample product or took part in a promotion

Active Filters

  1. Farmington, CT
    • Review 1
    • Votes 0
    5 out of 5 stars.

    Reliable and fast

    The product is of high quality, and works to my satisfaction. The delivery was fast.

    Helpful?

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service