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Cysteinylproline

Also known as L-Proline, 1-L-cysteinyl, acetate (salt), Acetic acid--cysteinylproline (1/1), Acetic acid--L-cysteinyl-L-proline (1/1)

CAS 70873-84-6Formula C10H18N2O5SMolar mass 278.33 g/mol
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Cysteinylproline chemical structure, C10H18N2O5S, CAS 70873-84-6
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
70873-84-6
Formula
C10H18N2O5S
Molar mass
278.33 g/mol
HS code
293399
Category
Peptides

What is Cysteinylproline?

Plain description, key identifiers and synonyms

Cysteinylproline is a chemical substance with the molecular formula C10H18N2O5S and a molar mass of 278.33 g/mol. Its CAS registry number is 70873-84-6. The IUPAC name is acetic acid, (2S)-1-[(2R)-2-amino-3-sulfanylpropanoyl]pyrrolidine-2-carboxylic acid.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
acetic acid, (2S)-1-[(2R)-2-amino-3-sulfanylpropanoyl]pyrrolidine-2-carboxylic acid
CAS number
70873-84-6 CAS number cross-checked
Molecular formula
C10H18N2O5S
InChIKey
FKNHDDTXBWMZIR-GEMLJDPKSA-N
InChI
InChI=1S/C8H14N2O3S.C2H4O2/c9-5(4-14)7(11)10-3-1-2-6(10)8(12)13;1-2(3)4/h5-6,14H,1-4,9H2,(H,12,13);1H3,(H,3,4)/t5-,6-;/m0./s1
Canonical SMILES
CC(=O)O.NC(CS)C(=O)N1CCCC1C(=O)O
Isomeric SMILES
CC(=O)O.C1C[C@H](N(C1)C(=O)[C@H](CS)N)C(=O)O

Synonyms

  • L-Proline, 1-L-cysteinyl, acetate (salt)
  • Acetic acid--cysteinylproline (1/1)
  • Acetic acid--L-cysteinyl-L-proline (1/1)

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
278.33 g/molcalc.
Exact mass
278.0936 Dacalc.
LogP (octanol/water)
-0.59calc.
Topological polar surface area
120.9 Ųcalc.
Hydrogen bond donors
4calc.
Hydrogen bond acceptors
5calc.
Rotatable bonds
3calc.
Heavy atoms
18calc.
Rings
1calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.7calc.
Formal charge
0calc.
Stereocentres
2calc.
Components
2calc.
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, C1CCNC1

C1CCNC1

1 ring, 5 atoms, the Pyrrolidine ring system.

22,348 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

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

Cysteinylproline suppliers

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Cysteinylproline price

Indicative price range per kg from live supplier offers

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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

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

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

HS 2933.99Indicative HS code

Heterocyclic compounds with nitrogen hetero-atom(s) only, other

World exports in 2024
$12.1B
−31.0% vs 2023, imports $28.8B
2019 to 2024
Top exporters
  1. China30.5%
  2. India * partner reported16.3%
  3. Ireland9.0%
Top importers
  1. Slovenia31.7%
  2. Italy24.2%
  3. United States5.0%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Cysteinylproline?

Cysteinylproline is a chemical substance with the molecular formula C10H18N2O5S and a molar mass of 278.33 g/mol. Its CAS registry number is 70873-84-6. The IUPAC name is acetic acid, (2S)-1-[(2R)-2-amino-3-sulfanylpropanoyl]pyrrolidine-2-carboxylic acid.

What is the CAS number of Cysteinylproline?

The CAS registry number of Cysteinylproline is 70873-84-6.

What is the molecular formula and weight of Cysteinylproline?

The molecular formula of Cysteinylproline is C10H18N2O5S and its molar mass is 278.33 g/mol.

Is Cysteinylproline hazardous?

No GHS hazard classification for Cysteinylproline is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of Cysteinylproline?

Cysteinylproline is usually classified under HS code 293399 (Heterocyclic compounds with nitrogen hetero-atom(s) only, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Cysteinylproline?

Post a free request on CompoundList and suppliers of Cysteinylproline will send you quotes. Your contact details stay private until you accept a quote.

What is the price of Cysteinylproline?

Suppliers quote Cysteinylproline 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 Cysteinylproline

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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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