Basic information
- Standard SMILES
S=C(n1ccnc1)n1ccnc1- InChIKey
RAFNCPHFRHZCPS-UHFFFAOYSA-N- Molecular formula
- C7H6N4S
- Average molar mass
- 178.22 g/mol
- Monoisotopic mass
- 178.03131719
Names & identifiers
- Preferred name
- 1,1'-Thiocarbonyldiimidazole
- IUPAC
- di(imidazol-1-yl)methanethione
- English name
- 1,1'-Thiocarbonyldiimidazole
- Molecular formula
- C7H6N4S
- Molecular weight
- 178.21
Names & synonyms
Show more names
Database identifiers
- CAS
6160-65-2- PubChem CID
- 80264
- DTXSID
DTXSID70210614- UNII
- H8A75XB5AY
- EC Number
- 228-183-4
- Nikkaji
- J5.204C
Properties
Computed structural properties
- XLogP
- 0.7
- Topological polar surface area
- 67.7 Ų
- Hydrogen bond donors
- 0
- Hydrogen bond acceptors
- 3
- Rotatable bonds
- 0
- Heavy atoms
- 12
- Formal charge
- 0
- Complexity
- 166
Experimental & physicochemical properties
Physicochemical properties
- Melting point
- 98 · 98-102 °C(lit.)
- Boiling point
- 342 °C · 342°C (rough estimate)
- Density
- 1.3046 · 1.3046 (rough estimate)
- refractive index
- 1.55 · 1.5500 (estimate)
- storage temp.
- 2 · 2-8°C
- solubility
- Soluble in terahydrofuran, toluene and dichloromethane.
- pka
- 1.96 · 1.96±0.10(Predicted)
- form
- Powder
- color
- Bright yellow
- Water Solubility
- decomposes
- Sensitive
- Moisture Sensitive
- BRN
- 609349 · 609349
- Stability
- Stable, but air and moisture sensitive. Incompatible with strong oxidizing agents, strong acids.
- InChI
- 1S/C7H6N4S/c12-7(10-3-1-8-5-10)11-4-2-9-6-11/h1-6H
- InChIKey
- RAFNCPHFRHZCPS-UHFFFAOYSA-N
- SMILES
- S=C(n1ccnc1)n2ccnc2
- CAS DataBase Reference
- 6160 · 6160-65-2(CAS DataBase Reference)
- FDA UNII
- 8 A75XB5AY · H8A75XB5AY
- UNSPSC Code
- 12352005 · 12352005
- NACRES
- 22 · NA.22
- Symbol(GHS)
- 7 · GHS07
- Signal word
- Warning
- Hazard statements
- 315 · H315-H319-H335
- Precautionary statements
- 264 · P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313-P261-P280a-P304+P340-P305+P351+P338-P405-P501a
- PPE
- 95 · Eyeshields, Gloves, type N95 (US)
- Hazard Codes
- Xi
- Risk Statements
- 22 · 22-34
- Safety Statements
- 22 · 22-24/25-45-36/37/39-26
- WGK Germany
- 3 · 3
- F
- 9 · 9-21
- Hazard Note
- Irritant/Keep Cold/Moisture Sensitive
- HS Code
- 29332900 · 29332900
- Storage Class
- 11 · 11 - Combustible Solids
- Hazard Classifications
- 4 OralEye · Acute Tox. 4 OralEye Irrit. 2Skin Irrit. 2
- REACH Registrations
- Inactive
Safety & regulation
GHS classification
GHS Classification
This chemical does not meet GHS hazard criteria for 6.7% (1 of 15) of reports.
Warning
H302 (53.3%): Harmful if swallowed [Warning Acute toxicity, oral]
P261, P264, P264+P265, P270, P271, P280, P301+P317, P302+P352, P304+P340, P305+P351+P338, P319, P321, P330, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 15 reports by companies from 12 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Hazard information
Regulatory Information
Chemical: 1H-Imidazole, 1,1'-carbonothioylbis-
Status: No longer Valid Update: 03-12-2020 https://echa.europa.eu/registration-dossier/-/registered-dossier/32005
1H-Imidazole, 1,1'-carbonothioylbis-: Does not have an individual approval but may be used under an appropriate group standard
Safety data
- F
- 9-21
- PPE
- Eyeshields, Gloves, type N95 (US)
- wgk
- 3
- hs_code
- 29332900
- risk_code
- 22-34
- Signal word
- Warning
- Symbol(GHS)
- GHS07
- hazard_code
- Xi
- hazard_note
- Irritant/Keep Cold/Moisture Sensitive
- safety_code
- 22-24/25-45-36/37/39-26
- Storage Class
- 11 - Combustible Solids
- Hazard statements
- H315-H319-H335
- REACH Registrations
- Inactive
- Hazard Classifications
- Acute Tox. 4 OralEye Irrit. 2Skin Irrit. 2
- Precautionary statements
- P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313-P261-P280a-P304+P340-P305+P351+P338-P405-P501a
Chemistry & industry
Applications
Description1,1'-Thiocarbonyldiimidazole (TCDI) is an imidazole compound that can be prepared by reacting thiophosphoryl chloride with two corresponding imidazoles. Its structure has two imidazole rings, and the imidazole groups can be rapidly displaced, making it a safer alternative to thiophosphoryl chloride. TCDI is used as an organic synthesis or chemical reaction reagent for the synthesis of thiosemicarbazones and thioamides. It is also used in the Corey-Winter olefin synthesis and in the Barton-McCombie deoxygenation reaction. In addition, it is the sulfur analogue of the peptide addition reagent carbodiimidazole (CDI), which is used to couple peptides.
Uses1,1'-Thiocarbonyldiimidazole is used as a reagent for the deoxygenation of alcohols with tributyltin hydride and diols with lithium aluminum hydride. It is also used to deoxygenate carboxylic monosaccharide analogues. Further, it is a useful reagent involved in biochemical synthesis. In addition to this, it is used to prepare 1-[bis-(4-methoxy-phenyl)-methyl]-1H-imidazole by reacting with 4,4'-dimethoxy-benzhydrol.
Uses1,1’Thiocarbonyldiimidazole can be used to deoxygenate carboxylic monosaccharide analogues.
Upstream & downstream products
Downstream products
Suppliers50 total
Related reactions
Linked notes
Loading…