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Coenzymes and cofactors

Corrin

Also known as corrina, corrine, Korrin

CAS 262-76-0Formula C19H22N4Molar mass 306.41 g/mol
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Corrin chemical structure, C19H22N4, CAS 262-76-0
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
262-76-0
Formula
C19H22N4
Molar mass
306.41 g/mol
HS code
293399
Category
Coenzymes and cofactors

What is Corrin?

Plain description, key identifiers and synonyms

Corrin is a tetrapyrrole fundamental parent that is the core macrocycle of vitamin B12. It has a role as a cofactor. It is a member of corrins and a tetrapyrrole fundamental parent.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(5Z,9Z,14Z)-2,3,7,8,12,13,17,18,19,22-decahydro-1H-corrin
CAS number
262-76-0 CAS number cross-checked
Molecular formula
C19H22N4
UNII
288E04GRMT
InChIKey
PXOPDYTVWWQZEK-DPQCFBEESA-N
InChI
InChI=1S/C19H22N4/c1-3-14-10-16-5-7-18(22-16)19-8-6-17(23-19)11-15-4-2-13(21-15)9-12(1)20-14/h9-11,18-20H,1-8H2/b12-9-,14-10-,15-11-
Canonical SMILES
C1=C2CCC(=N2)C=C2CCC(=CC3=NC(CC3)C3CCC1=N3)N2
Isomeric SMILES
C1CC\2=NC1C3CCC(=N3)/C=C\4/CCC(=N4)/C=C\5/CC/C(=C2)/N5

Synonyms

  • corrina
  • corrine
  • Korrin
  • (5Z,9Z,14Z)-2,3,7,8,12,13,17,18,19,22-decahydro-1H-corrin
  • CRN
  • Corphyrin
  • [2~5~(3)Z,4~5~(5)Z,6~5~(7)Z]-1~3~,1~4~,4~3~,4~4~,6~3~,6~4~-Hexahydro-1~2~H-1,4,6(2,5)-tripyrrola-2(2,5)-pyrrolidinacycloheptaphane-2,4,6-triene

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
306.41 g/molcalc.
Exact mass
306.1844 Dacalc.
LogP (octanol/water)
3.48calc.
Topological polar surface area
49.11 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
4calc.
Rotatable bonds
0calc.
Heavy atoms
23calc.
Rings
5calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.53calc.
Formal charge
0calc.
Stereocentres
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, C1=C2CCC(=N2)C=C2CCC(=CC3=NC(CC3)C3CCC1=N3)N2

C1=C2CCC(=N2)C=C2CCC(=CC3=NC(CC3)C3CCC1=N3)N2

5 rings, 23 atoms.

6 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.

Corrin suppliers

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

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Corrin price

Indicative price range per kg from live supplier offers

No published prices right now

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Uses and applications

What the substance is used for, by industry and function

Roles

  • cofactor

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 Corrin 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 Corrin is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

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

What is Corrin?

Corrin is a tetrapyrrole fundamental parent that is the core macrocycle of vitamin B12. It has a role as a cofactor. It is a member of corrins and a tetrapyrrole fundamental parent.

What is the CAS number of Corrin?

The CAS registry number of Corrin is 262-76-0.

What is the molecular formula and weight of Corrin?

The molecular formula of Corrin is C19H22N4 and its molar mass is 306.41 g/mol.

What is Corrin used for?

Known uses and roles of Corrin include cofactor.

Is Corrin hazardous?

No GHS hazard classification for Corrin 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 Corrin?

Corrin 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 Corrin?

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

What is the price of Corrin?

Suppliers quote Corrin 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 Corrin

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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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