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Heterocyclic building blocks

Tetranorbiotin

Also known as 1H-Thieno(3,4-d)imidazole-4-carboxylic acid, hexahydro-2-oxo-, (3aS,4R,6aR)-Hexahydro-2-oxo-1H-thieno(3,4-d)imidazole-4-carboxylic acid, (3aS,4R,6aR)-2-oxohexahydro-1H-thieno[3,4-d]imidazole-4-carboxylic acid

CAS 20349-92-2Formula C6H8N2O3SMolar mass 188.21 g/mol
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Tetranorbiotin chemical structure, C6H8N2O3S, CAS 20349-92-2
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
20349-92-2
Formula
C6H8N2O3S
Molar mass
188.21 g/mol
HS code
293499
Category
Heterocyclic building blocks

What is Tetranorbiotin?

Plain description, key identifiers and synonyms

Tetranorbiotin is a member of the class of thienoimidazoles that is 2-oxohexahydrothieno[3,4-d]imidazole carrying an additional carboxy group at position 4 (the 3aS,4R,6aR-diastereomer). It is a monocarboxylic acid, an azabicycloalkane, a thiabicycloalkane, a thienoimidazole and a member of ureas.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(3aS,4R,6aR)-2-oxo-1,3,3a,4,6,6a-hexahydrothieno[3,4-d]imidazole-4-carboxylic acid
CAS number
20349-92-2
Molecular formula
C6H8N2O3S
UNII
65Y9I4I4OE
InChIKey
ZYTPHRLFUPVWJX-YVZJFKFKSA-N
InChI
InChI=1S/C6H8N2O3S/c9-5(10)4-3-2(1-12-4)7-6(11)8-3/h2-4H,1H2,(H,9,10)(H2,7,8,11)/t2-,3-,4+/m0/s1
Canonical SMILES
O=C1NC2CSC(C(=O)O)C2N1
Isomeric SMILES
C1[C@H]2[C@@H]([C@@H](S1)C(=O)O)NC(=O)N2

Synonyms

  • 1H-Thieno(3,4-d)imidazole-4-carboxylic acid, hexahydro-2-oxo-
  • (3aS,4R,6aR)-Hexahydro-2-oxo-1H-thieno(3,4-d)imidazole-4-carboxylic acid
  • (3aS,4R,6aR)-2-oxohexahydro-1H-thieno[3,4-d]imidazole-4-carboxylic acid
  • 1H-Thieno(3,4-d)imidazole-4-carboxylic acid, hexahydro-2-oxo-, (3as-(3aalpha,4beta,6aalpha))-
  • (3aS,4R,6aR)-Hexahydro-2-oxo-1H-thieno[3,4-d]imidazole-4-carboxylic acid
  • 1H-Thieno(3,4-d)imidazole-4-carboxylic acid, hexahydro-2-oxo-, (3as-(3a.alpha.,4beta,6a.alpha.))-
  • (3aS,4R,6aR)-2-oxohexahydro-1H-thieno(3,4-d)imidazole-4-carboxylic 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
188.21 g/molcalc.
Exact mass
188.0256 Dacalc.
LogP (octanol/water)
-0.76calc.
Topological polar surface area
78.43 Ųcalc.
Hydrogen bond donors
3calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
1calc.
Heavy atoms
12calc.
Rings
2calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.67calc.
Formal charge
0calc.
Stereocentres
3calc.
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, O=C1NC2CSCC2N1

O=C1NC2CSCC2N1

2 rings, 9 atoms.

443 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.

Tetranorbiotin suppliers

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Tetranorbiotin 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

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 Tetranorbiotin is traded under.

HS 2934.99Indicative HS code

Nucleic acids and their salts, other heterocyclic compounds, not elsewhere classified in heading 2934

World exports in 2024
$26.7B
+15.0% vs 2023, imports $26.3B
2019 to 2024
Top exporters
  1. Ireland26.3%
  2. China15.7%
  3. Singapore10.3%
Top importers
  1. United States24.5%
  2. Germany23.1%
  3. Japan4.5%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

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

What is Tetranorbiotin?

Tetranorbiotin is a member of the class of thienoimidazoles that is 2-oxohexahydrothieno[3,4-d]imidazole carrying an additional carboxy group at position 4 (the 3aS,4R,6aR-diastereomer). It is a monocarboxylic acid, an azabicycloalkane, a thiabicycloalkane, a thienoimidazole and a member of ureas.

What is the CAS number of Tetranorbiotin?

The CAS registry number of Tetranorbiotin is 20349-92-2.

What is the molecular formula and weight of Tetranorbiotin?

The molecular formula of Tetranorbiotin is C6H8N2O3S and its molar mass is 188.21 g/mol.

What is Tetranorbiotin used for?

Known uses and roles of Tetranorbiotin include building blocks in research and laboratory and screening compounds in research and laboratory.

Is Tetranorbiotin hazardous?

No GHS hazard classification for Tetranorbiotin 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 Tetranorbiotin?

Tetranorbiotin is usually classified under HS code 293499 (Nucleic acids and their salts, whether or not chemically defined, other heterocyclic…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Tetranorbiotin?

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

What is the price of Tetranorbiotin?

Suppliers quote Tetranorbiotin 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 Tetranorbiotin

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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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