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What Is the Molecular Formula of Hydroxypinacolone Retinoate? HPR Molecular Formula, Molecular Weight, and CAS Number Explained

Hydroxypinacolone Retinoate (HPR)
has the molecular formula C26H38O3
and its CAS number is
893412-73-2with a molecular weight of approximately
398.58 g/mol
。

If you are searching for the "hydroxypinacolone retinoate molecular formula," the most important point to confirm is:
C26H38O3 refers to the molecular formula of the hydroxypinacolone retinoate compound itself
. HPR 10% solutions, encapsulated HPR, or other blended raw materials on the market may also contain solvents, carriers, and other ingredients, so the blended product as a whole cannot be directly understood as C26H38O3.

1. What is the molecular formula of Hydroxypinacolone Retinoate?

The chemical molecular formula of Hydroxypinacolone Retinoate is:

C26H38O3

This molecular formula indicates that one Hydroxypinacolone Retinoate molecule consists of
26 carbon atoms, 38 hydrogen atoms, and 3 oxygen atoms
composition.

From the perspective of procurement, R&D, or raw material data verification, the molecular formula usually needs to be verified together with the CAS number. The common CAS number for Hydroxypinacolone Retinoate is
893412-73-2If the product name, CAS number, and molecular formula in the supplier's documentation do not correspond, it is recommended to further check the COA, SDS, TDS, HPLC, or other testing documents, rather than judging solely based on the Chinese product name.

2. What is the molecular weight of HPR?

Calculated according to the elemental composition of C26H38O3, the relative molecular mass of hydroxypinacolone retinoate is approximately
398.58, so it is usually stated in common references as:

Molecular Weight: 398.58 g/mol

Some databases may write it as 398.6 g/mol according to display precision; this is merely a difference in decimal places and does not indicate a different substance.

3. What is the difference between the molecular formula and the structural formula of hydroxypinacolone retinoate?

When looking up HPR information, you will often see both "molecular formula" and "structural formula" at the same time; the two are not the same concept.

Molecular formula C26H38O3
It mainly indicates the three elements carbon, hydrogen, and oxygen in HPR and their atomic counts; while the
structural formula
further indicates how these atoms are connected, and can reflect the functional groups and the overall chemical structure of the molecule.

Therefore, if you are only confirming the identity of a raw material or filling in basic product parameters, the molecular formula is usually sufficient; if chemical structure research, raw material identification, or further technical analysis is involved, then structural formulas, SMILES, InChI, NMR, and other data are also needed.

IV. Why is the molecular formula of HPR C26H38O3?

Hydroxypinacolone Retinoate is a retinoic acid-related ester compound. Its systematic chemical name and corresponding structural information can be found in public chemical databases, and its molecular composition can ultimately be summarized as 26 carbon atoms, 38 hydrogen atoms, and 3 oxygen atoms, so the molecular formula is written as
C26H38O3
。

For actual procurement personnel, there is no need to derive the molecular formula yourself from the name alone; a more reliable method is to cross-check
CAS 893412-73-2, English name Hydroxypinacolone Retinoate, and molecular formula C26H38O3
。

V. Is the molecular formula of pure HPR the same as that of a 10% HPR solution?

This is a question that procurement and formulation personnel can easily confuse.

The molecular formula of pure Hydroxypinacolone Retinoate itself is C26H38O3.

However, there are also commercial forms on the market such as 10% HPR solution, oil-soluble HPR, and encapsulated HPR. These products may consist of HPR together with solvents, carriers, or other excipients, so they belong to
mixed systems
, a single C26H38O3 cannot represent the entire composition of the whole product.

For example, for a raw material labeled "HPR 10%", the "10%" usually describes the HPR content in the product, rather than meaning that the molecular formula of HPR itself has changed.

6. What other parameters should also be confirmed when looking up the HPR molecular formula?

If the purpose of looking up the "Hydroxypinacolone Retinoate molecular formula" is to purchase raw materials or conduct formula development, it is recommended not to confirm only C26H38O3, but also to verify the following information at the same time:

• Product Name:
  Hydroxypinacolone Retinoate
  

• Abbreviation:
  HPR
  

• CAS Number:
  893412-73-2

• Molecular Formula:
  C26H38O3
  

• Molecular Weight:
  Approx. 398.58 g/mol
  

• Product Content:
  Confirm whether it is high-content HPR raw material or HPR compound solution
  

• Testing Method:
  Verify HPLC and other testing information against supplier documentation
  

• Batch Documentation:
  Review COA, SDS, TDS and other documents
  

For bulk purchases, it is especially important to distinguish between "the basic parameters of the chemical substance itself" and "the specification parameters of the product actually delivered by the supplier." The former can be verified through authoritative databases, while the latter should be based on the test reports and product specifications of the specific batch.

VII. Frequently Asked Questions About the Molecular Formula of Hydroxypinacolone Retinoate

1. What is the molecular formula of Hydroxypinacolone Retinoate?

The molecular formula of Hydroxypinacolone Retinoate (HPR) is
C26H38O3
。

2. What is the CAS number of HPR?

The common CAS number is
893412-73-2。

3. What is the molecular weight of Hydroxypinacolone Retinoate?

The molecular weight is approximately
398.58 g/mol
, and some databases may display it as 398.6 g/mol depending on the number of decimal places.

4. Is the molecular formula of HPR 10% also C26H38O3?

C26H38O3 is
the molecular formula of the compound Hydroxypinacolone Retinoate itself
. HPR 10% products usually also contain solvents or other carriers, so the product as a whole is a mixture and cannot be simply represented entirely by C26H38O3.

5. Are Hydroxypinacolone Retinoate and HPR the same ingredient?

In cosmetic raw materials and related technical documents, HPR is usually the abbreviation for Hydroxypinacolone Retinoate, i.e., hydroxypinacolone retinoate. When purchasing, it is still recommended to confirm with CAS number 893412-73-2.

Summary

Hydroxypinacolone Retinoate's
molecular formula is C26H38O3
, English name is
Hydroxypinacolone Retinoate
, commonly abbreviated as
HPR
and its CAS number is
893412-73-2with a molecular weight of approximately
398.58 g/mol
。

For raw material procurement and formulation R&D personnel, checking the molecular formula is only the first step in confirming product identity. During actual procurement, one should further verify product content, testing methods, as well as batch and technical documents such as COA, SDS, and TDS, with particular attention to distinguishing
pure HPR raw material
from
compound products such as HPR 10%
。

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