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Impurities and reference standards

Palmitic anhydride

Also known as Palmitic acid anhydride, Hexadecanoic acid, anhydride, hexadecanoyl hexadecanoate

CAS 623-65-4Formula C32H62O3Molar mass 494.85 g/molEC 210-805-0
GHS signal word: Danger. Pictograms: Corrosive
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Palmitic anhydride chemical structure, C32H62O3, CAS 623-65-4
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
623-65-4
Formula
C32H62O3
Molar mass
494.85 g/mol
EC number
210-805-0
HS code
291570
Category
Impurities and reference standards

What is Palmitic anhydride?

Plain description, key identifiers and synonyms

Palmitic anhydride is a chemical substance with the molecular formula C32H62O3 and a molar mass of 494.85 g/mol. Its CAS registry number is 623-65-4. The IUPAC name is hexadecanoyl hexadecanoate.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
hexadecanoyl hexadecanoate
CAS number
623-65-4 CAS number cross-checked
EC number
210-805-0
Molecular formula
C32H62O3
UNII
33JHB8GS96
MDL number
MFCD00008992
InChIKey
QWZBEFCPZJWDKC-UHFFFAOYSA-N
InChI
InChI=1S/C32H62O3/c1-3-5-7-9-11-13-15-17-19-21-23-25-27-29-31(33)35-32(34)30-28-26-24-22-20-18-16-14-12-10-8-6-4-2/h3-30H2,1-2H3
SMILES (canonical and isomeric)
CCCCCCCCCCCCCCCC(=O)OC(=O)CCCCCCCCCCCCCCC

Synonyms

  • Palmitic acid anhydride
  • Hexadecanoic acid, anhydride
  • hexadecanoyl hexadecanoate
  • Hexadecanoic anhydride
  • Hexadecanoic acid, 1,1'-anhydride
  • n-hexadecanoic anhydride
  • Hexadecanoic anhydride #
  • Palmitic anhydride, 97%
  • hexadecanoic acid anhydride
  • Clindamycin Palmitate Impurity 101

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
494.85 g/molcalc.
Exact mass
494.4699 Dacalc.
LogP (octanol/water)
11.02calc.
Topological polar surface area
43.37 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
28calc.
Heavy atoms
35calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.94calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (1 violation)calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS05: Corrosive
Corrosive

Hazard statements

  • H290May be corrosive to metals.
  • H314Causes severe skin burns and eye damage.
Precautionary statements (15)
  • P234Keep only in original packaging.
  • P260Do not breathe dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P330 + P331If swallowed: Rinse mouth. Do not induce vomiting.
  • P302 + P361 + P354If on skin: Take off immediately all contaminated clothing. Immediately rinse with water for several minutes.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P354 + P338If in eyes: Immediately rinse with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P316Get emergency medical help immediately.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P363Wash contaminated clothing before reuse.
  • P390Absorb spillage to prevent material damage.
  • P405Store locked up.
  • P406Store in a corrosion resistant container with a resistant inner liner.
  • P501Dispose of contents and container in accordance with local regulations.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

Palmitic anhydride suppliers

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Palmitic anhydride price

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Uses and applications

What the substance is used for, by industry and function

Applications are not documented for this substance yet. Suppliers often describe uses on their product pages, linked in the suppliers list above.

Regulatory status

Inventories, regulations and trade controls that list this substance

United States

  • TSCA inventory (USA)
    Status: Active in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Palmitic anhydride is traded under.

HS 2915.70Indicative HS code

Palmitic acid, stearic acid, their salts and esters

World exports in 2024
$1.25B
+23.7% vs 2023, imports $1.13B
2019 to 2024
Top exporters
  1. Indonesia32.2%
  2. Malaysia23.0%
  3. Singapore6.5%
Top importers
  1. United States10.7%
  2. Germany6.2%
  3. China5.9%
Reported customs values in USD, not prices.Full trade data

The HS code shown for Palmitic anhydride is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Palmitic anhydride, based on the data on this page

What is Palmitic anhydride?

Palmitic anhydride is a chemical substance with the molecular formula C32H62O3 and a molar mass of 494.85 g/mol. Its CAS registry number is 623-65-4. The IUPAC name is hexadecanoyl hexadecanoate.

What is the CAS number of Palmitic anhydride?

The CAS registry number of Palmitic anhydride is 623-65-4.

What is the molecular formula and weight of Palmitic anhydride?

The molecular formula of Palmitic anhydride is C32H62O3 and its molar mass is 494.85 g/mol.

Is Palmitic anhydride hazardous?

Palmitic anhydride carries the GHS signal word "Danger". Main hazards: may be corrosive to metals, causes severe skin burns and eye damage. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Palmitic anhydride?

Palmitic anhydride is usually classified under HS code 291570 (Palmitic acid, stearic acid, their salts and esters). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Palmitic anhydride?

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What is the price of Palmitic anhydride?

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Guides for buyers

Practical guides that help when you source, ship or handle Palmitic anhydride

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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