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Antibiotics and anti-infectives

Caprine

Also known as L-Norleucine, Norleucine, (S)-2-Aminohexanoic acid

CAS 327-57-1Formula C6H13NO2Molar mass 131.18 g/molEC 206-321-4
GHS signal word: Warning. Pictograms: Harmful or irritant 55 suppliers listed
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Caprine chemical structure, C6H13NO2, CAS 327-57-1
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
327-57-1
Formula
C6H13NO2
Molar mass
131.18 g/mol
EC number
206-321-4
HS code
292249
Category
Antibiotics and anti-infectives

What is Caprine?

Plain description, key identifiers and synonyms

L-norleucine is a non-proteinogenic L-alpha-amino acid comprising hexanoic acid carrying an amino group at C-2. It does not occur naturally. It is a 2-aminohexanoic acid and a non-proteinogenic L-alpha-amino acid. It is a conjugate acid of a L-2-aminohexanoate. It is an enantiomer of a D-norleucine. It is a tautomer of a L-2-aminohexanoic acid zwitterion.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(2S)-2-aminohexanoic acid
CAS number
327-57-1 CAS number cross-checkedOther or deprecated CAS: 496-90-2, 616-06-8
EC number
206-321-4
Molecular formula
C6H13NO2
UNII
832C8OV84S
MDL number
MFCD00064423
InChIKey
LRQKBLKVPFOOQJ-YFKPBYRVSA-N
InChI
InChI=1S/C6H13NO2/c1-2-3-4-5(7)6(8)9/h5H,2-4,7H2,1H3,(H,8,9)/t5-/m0/s1
Canonical SMILES
CCCCC(N)C(=O)O
Isomeric SMILES
CCCC[C@@H](C(=O)O)N

Synonyms

  • L-Norleucine
  • Norleucine
  • (S)-2-Aminohexanoic acid
  • (2S)-2-aminohexanoic acid
  • Glycoleucine
  • L-(+)-Norleucine
  • L-2-Aminohexanoic acid
  • 2-Aminocaproic acid
  • Hexanoic acid, 2-amino-, (S)-
  • L-Aminohexanoate
  • alpha-Aminocaproic acid
  • L-Aminohexanoic acid
  • Norleucine, L
  • L-Isomer Norleucine
  • (2S)-2-azaniumylhexanoate
  • H-Nle-OH
  • L-2-Aminohexanoate
  • Norleucine, L-
  • 2S-amino-hexanoic acid
  • 2-Aminocaproate
  • (S)-2-Aminocaproic acid
  • (S)-Norleucine
  • L(+)-Norleucine
  • (S)-2-aminohexanoate
  • (S)-2-amino-Hexanoate
Show all 36 synonyms
  • n-C4H9CH(NH2)COOH
  • NLE
  • (S)-(+)-2-Aminohexanoic acid
  • Norleucine (VAN)
  • 2-amino-hexanoic acid
  • (S)-2-amino-Hexanoic acid
  • 2-Aminohexanoate
  • (S)-Aminohexanoate
  • (S)-Aminohexanoic acid
  • H-Nle-OH L-Norleucine
  • (S)-2-aminohexanoicacid

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
131.18 g/molcalc.
Exact mass
131.0946 Dacalc.
LogP (octanol/water)
0.59calc.
Topological polar surface area
63.32 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
4calc.
Heavy atoms
9calc.
Rings
0calc.
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.

Safety and hazards

GHS classification summary, not a safety data sheet

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

Hazard statements

  • H317May cause an allergic skin reaction.
Precautionary statements (8)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P272Contaminated work clothing should not be allowed out of the workplace.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P302 + P352If on skin: Wash with plenty of water.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P333 + P317If skin irritation or rash occurs: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • 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

Caprine suppliers

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

All 55 suppliers
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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

55 suppliers in 13 countries

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Caprine 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.

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Uses and applications

What the substance is used for, by industry and function

Roles

  • antiinfective agent
  • antimalarial
  • antimicrobial agent
  • antimicrobial drug
  • antiparasitic agent
  • antiplasmodial drug
  • antiprotozoal drug
  • pharmaceutical

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 Caprine is traded under.

HS 2922.49Indicative HS code

Amino-acids, other than those containing more than one kind of oxygen function, and…

World exports in 2024
$3.88B
−11.5% vs 2023, imports $3.87B
2019 to 2024
Top exporters
  1. China38.7%
  2. India * partner reported8.3%
  3. Germany8.1%
Top importers
  1. United States13.4%
  2. Germany11.1%
  3. Japan6.6%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

Quick answers about Caprine, based on the data on this page

What is Caprine?

L-norleucine is a non-proteinogenic L-alpha-amino acid comprising hexanoic acid carrying an amino group at C-2. It does not occur naturally. It is a 2-aminohexanoic acid and a non-proteinogenic L-alpha-amino acid. It is a conjugate acid of a L-2-aminohexanoate. It is an enantiomer of a D-norleucine.

What is the CAS number of Caprine?

The CAS registry number of Caprine is 327-57-1. Other or deprecated CAS numbers: 496-90-2, 616-06-8.

What is the molecular formula and weight of Caprine?

The molecular formula of Caprine is C6H13NO2 and its molar mass is 131.18 g/mol.

What is Caprine used for?

Known uses and roles of Caprine include antiinfective agent, antimalarial, antimicrobial agent, antimicrobial drug, antiparasitic agent and 3 more.

Is Caprine hazardous?

Caprine carries the GHS signal word "Warning". Main hazards: may cause an allergic skin reaction. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Caprine?

Caprine is usually classified under HS code 292249 (Amino-acids, other than those containing more than one kind of oxygen function, and…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Caprine?

CompoundList lists 55 suppliers of Caprine in China, United States, Germany, United Kingdom and 9 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 Caprine?

Suppliers quote Caprine 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 Caprine

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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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