CompoundList
Sign in
Amino acids and derivatives

Pipecolic acid

Also known as piperidine-2-carboxylic acid, Pipecolinic acid, 2-Piperidinecarboxylic acid

CAS 535-75-1Formula C6H11NO2Molar mass 129.16 g/molEC 208-616-3
GHS signal word: Warning. Pictograms: Harmful or irritant 61 suppliers listed
Get quotes Compare 61 suppliers
Pipecolic acid chemical structure, C6H11NO2, CAS 535-75-1
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
535-75-1
Formula
C6H11NO2
Molar mass
129.16 g/mol
EC number
208-616-3
HS code
293339
Category
Amino acids and derivatives

What is Pipecolic acid?

Plain description, key identifiers and synonyms

Pipecolic acid is a piperidinemonocarboxylic acid in which the carboxy group is located at position C-2. It is a conjugate acid of a pipecolate.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
piperidine-2-carboxylic acid
CAS number
535-75-1 CAS number cross-checkedOther or deprecated CAS: 3105-95-1, 4043-87-2, 83680-83-5
EC numbers
208-616-3, 223-737-1
Molecular formula
C6H11NO2
UNII
H254GW7PVV
MDL number
MFCD00064347
InChIKey
HXEACLLIILLPRG-UHFFFAOYSA-N
InChI
InChI=1S/C6H11NO2/c8-6(9)5-3-1-2-4-7-5/h5,7H,1-4H2,(H,8,9)
SMILES (canonical and isomeric)
C1CCNC(C1)C(=O)O

Synonyms

  • piperidine-2-carboxylic acid
  • Pipecolinic acid
  • 2-Piperidinecarboxylic acid
  • DL-Pipecolic acid
  • Dihydrobaikiane
  • Piperolinic acid
  • piperidin-1-ium-2-carboxylate
  • DL-Pipecolinic acid
  • pipecolate
  • l(-)-pipecolinic acid
  • L-PipecolicAcid
  • Hexahydropicolinic acid
  • DL-Homoproline
  • Acide pipecolique
  • (R)-(+)-2-Piperidinecarboxylic acid
  • 2-Carboxypiperidine
  • (+/-)-Pipecolic acid
  • Hexahydro-2-picolinic acid
  • 2-Pipecolinic acid
  • Acide piperidine-carboxylique-2
  • alpha-Pipecolinic acid
  • (+/-)-2-Piperidinecarboxylic Acid
  • (+/-)-Pipecolinic acid
  • 2-Piperidinecarboxylic acidd
  • 2-Pyridine(carboxylic acid-13C1)
Show all 35 synonyms
  • Pipecolinate
  • Pipecolinicacid
  • Piperolinate
  • a-Pipecolinate
  • DL-Pipecolinate
  • DL-Pipecolate
  • alpha-Pipecolinate
  • Hexahydropicolinate
  • a-Pipecolinic acid
  • dl-pipercolinic acid

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
129.16 g/molcalc.
Exact mass
129.079 Dacalc.
LogP (octanol/water)
0.21calc.
Topological polar surface area
49.33 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
1calc.
Heavy atoms
9calc.
Rings
1calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.83calc.
Formal charge
0calc.
Stereocentres
1calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, C1CCNCC1

C1CCNCC1

1 ring, 6 atoms, the Piperidine ring system.

32,085 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
Precautionary statements (16)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P302 + P352If on skin: Wash with plenty of water.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P332 + P317If skin irritation occurs: Get medical help.
  • P337 + P317If eye irritation persists: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • P405Store locked up.
  • 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

Pipecolic acid suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 61 suppliers
30 of 30 offers

Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

61 suppliers in 7 countries

Send one request to many suppliers

Choose up to 10 suppliers or let us match your request. Compare quotes side by side, free.

Choose suppliersPost a request

Pipecolic acid price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

Get latest price

Uses and applications

What the substance is used for, by industry and function

Roles

  • animal metabolite
  • eukaryotic metabolite
  • human metabolite
  • mammalian metabolite
  • metabolite

Regulatory status

Inventories, regulations and trade controls that list this substance

United States

  • TSCA inventory (USA)
    Status: Inactive 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 Pipecolic acid is traded under.

HS 2933.39Indicative HS code

Heterocyclic compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure…

World exports in 2024
$9.16B
−17.9% vs 2023, imports $10.6B
2019 to 2024
Top exporters
  1. China21.5%
  2. India * partner reported12.3%
  3. Ireland11.6%
Top importers
  1. Germany14.2%
  2. United States12.8%
  3. Brazil10.1%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

Quick answers about Pipecolic acid, based on the data on this page

What is Pipecolic acid?

Pipecolic acid is a piperidinemonocarboxylic acid in which the carboxy group is located at position C-2. It is a conjugate acid of a pipecolate.

What is the CAS number of Pipecolic acid?

The CAS registry number of Pipecolic acid is 535-75-1. Other or deprecated CAS numbers: 3105-95-1, 4043-87-2, 83680-83-5.

What is the molecular formula and weight of Pipecolic acid?

The molecular formula of Pipecolic acid is C6H11NO2 and its molar mass is 129.16 g/mol.

What is Pipecolic acid used for?

Known uses and roles of Pipecolic acid include animal metabolite, eukaryotic metabolite, human metabolite, mammalian metabolite and metabolite.

Is Pipecolic acid hazardous?

Pipecolic acid carries the GHS signal word "Warning". Main hazards: causes skin irritation, causes serious eye irritation, may cause respiratory irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Pipecolic acid?

Pipecolic acid is usually classified under HS code 293339 (Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Pipecolic acid?

CompoundList lists 61 suppliers of Pipecolic acid in China, United States, Germany, Canada and 3 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Pipecolic acid?

Suppliers quote Pipecolic acid on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Pipecolic acid

Get quotes for Pipecolic acid

Post one free request with your grade, quantity and destination. Matching suppliers send quotes you can compare side by side.
Post a request Sell Pipecolic acid
Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
Embed this structure on your websiteShow code

Paste this code into your page to show the 2D structure of Pipecolic acid with a 3D view, its CAS number and a link back to this page. Free to use with the link kept.

<iframe src="https://www.compoundlist.com/embed/structure/pipecolic-acid-535-75-1" title="Pipecolic acid structure on CompoundList" width="360" height="420" style="border:1px solid #E7E2DA;border-radius:12px;max-width:100%" loading="lazy" referrerpolicy="strict-origin-when-cross-origin"></iframe>
Preview the embed

Explore more in Amino acids and derivatives or HS code 293339

61 suppliers
Free quotes, contact stays private
Get quotes