1,2,4,5-TETRACYANOBENZENE

Modify Date: 2026-07-01 13:17:35

1,2,4,5-TETRACYANOBENZENE Structure
1,2,4,5-TETRACYANOBENZENE structure
Common Name 1,2,4,5-TETRACYANOBENZENE
CAS Number 712-74-3 Molecular Weight 178.150
Density 1.4±0.1 g/cm3 Boiling Point 446.1±45.0 °C at 760 mmHg
Molecular Formula C10H2N4 Melting Point 265-268 °C(lit.)
MSDS Chinese USA Flash Point 235.3±22.6 °C
Symbol GHS06
GHS06
Signal Word Danger

Summary: 1,2,4,5-Tetracyanobenzene (CAS number: 712-74-3), with molecular formula C10H2N4 and molecular weight 178.150, is a white crystalline solid with a melting point of 265-268°C. This compound is used for synthesizing x-cyano-phthalocyanines and phthalocyanine derivatives. For research-use only, not for medical or clinical usage.


 Names

This table lists Chinese names, IUPAC names and various aliases of this chemical substance.

Name 1,2,4,5-Tetracyanobenzene
Synonym More Synonyms

 Chemical & Physical Properties

This table shows physicochemical parameters including melting point, boiling point, density, solubility and optical rotation. Missing data is marked as N/A.

Density 1.4±0.1 g/cm3
Boiling Point 446.1±45.0 °C at 760 mmHg
Melting Point 265-268 °C(lit.)
Molecular Formula C10H2N4
Molecular Weight 178.150
Flash Point 235.3±22.6 °C
Exact Mass 178.027939
PSA 95.16000
LogP -0.85
Vapour Pressure 0.0±1.1 mmHg at 25°C
Index of Refraction 1.610
InChIKey FAAXSAZENACQBT-UHFFFAOYSA-N
SMILES N#Cc1cc(C#N)c(C#N)cc1C#N
Stability Stable. Incompatible with strong oxidizing agents.

 MSDS

This table provides MSDS information including hazard classification, first‑aid, fire‑fighting, spill handling, operation and storage instructions.

 Toxicological Information

This table summarizes toxicological test data, acute & chronic toxicity and ecological hazard parameters for this chemical.

CHEMICAL IDENTIFICATION

RTECS NUMBER :
DB9100000
CHEMICAL NAME :
1,2,4,5-Benzenetetracarbonitrile
CAS REGISTRY NUMBER :
712-74-3
LAST UPDATED :
199410
DATA ITEMS CITED :
1
MOLECULAR FORMULA :
C10-H2-N4
MOLECULAR WEIGHT :
178.16
WISWESSER LINE NOTATION :
NCR BCN DCN ECN

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
28 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
TPKVAL Toksikologiya Novykh Promyshlennykh Khimicheskikh Veshchestv. Toxicology of New Industrial Chemical Substances. For English translation, see TNICS*. (Izdatel'stvo Meditsina, Moscow, USSR) No.1- 1961- Volume(issue)/page/year: 7,180,1965

 Safety Information

This table covers safety warnings, protective measures, incompatible substances and disposal guidelines for this compound.

Symbol GHS06
GHS06
Signal Word Danger
Hazard Statements H300-H311-H331
Precautionary Statements P261-P264-P280-P301 + P310-P311
Personal Protective Equipment Eyeshields;Faceshields;Gloves;type P2 (EN 143) respirator cartridges
Hazard Codes T
Risk Phrases R23/24/25
Safety Phrases S36/37/39-S45
RIDADR UN 3439 6.1/PG 2
WGK Germany 3
RTECS DB9100000
Packaging Group II
Hazard Class 6.1(a)
HS Code 2926909090

 Synthetic Route

This table presents publicly reported synthetic routes, reaction conditions, reactants and product information of the compound.

1,2,4,5-TETRACYANOBENZENE Structure

1,2,4,5-TETRACY...

CAS#:712-74-3

~%

1,2,4,5-TETRACYANOBENZENE Structure

1,2,4,5-TETRACY...

CAS#:712-74-3

Learn More
Literature: Journal of Organic Chemistry, , vol. 61, # 4 p. 1413 - 1420
1,2,4,5-TETRACYANOBENZENE Structure

1,2,4,5-TETRACY...

CAS#:712-74-3

~%

1,2,4,5-TETRACYANOBENZENE Structure

1,2,4,5-TETRACY...

CAS#:712-74-3

Learn More
Literature: Journal of Organic Chemistry, , vol. 61, # 4 p. 1413 - 1420

 Customs

This table shows customs‑related data including HS‑code, tariff and regulatory conditions for import and export.

HS Code 2926909090
Summary HS:2926909090 other nitrile-function compounds VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%

 Articles9

More Articles

This table lists relevant public references with title, journal and publication metadata for this compound.

Inelastic and quasielastic neutron scattering and IR and R spectroscopic studies of 1, 2, 4, 5-tetracyanobenzene (TCNB)-1, 2, 4, 5-tetramethylbenzene (durene) complex. Bator G, et al.

Phase Transitions 80(6-7) , 489-500, (2007)

Application of time-resolved linear dichroism spectroscopy: Relaxation of excited hexamethylbenzene/1, 2, 4, 5-tetracyanobenzene charge-transfer complexes. Arnold BR, et al.

J. Phys. Chem. A 105(3) , 537-543, (2001)

Structural Studies of the 1: 1 Complex of o-3, 4-Dimethyltetrathiafulvalene (o-Me2TTF) and 1, 2, 4, 5-Tetracyanobenzene (TCNB). Reinheimer EW, et al.

J. Chem. Crystallogr. 40(6) , 514-519, (2010)

 Synonyms

This table collects all English aliases, systematic names and CAS‑related synonyms of the compound.

Benzol-1,2,4,5-tetracarbonitril
MFCD00043481
1,2,4,5-Benzenetetracarbonitrile
benzene-1,2,4,5-tetracarbonitrile
1,2,4,5-TETRACYANOBENZENE

 1,2,4,5-TETRACYANOBENZENE | FAQ

This section contains frequently‑asked‑questions about this compound, including basic parameters, properties, storage conditions and corresponding answers.

Q: What is the molecular weight of 1,2,4,5-Tetracyanobenzene?
A: Molecular weight of 1,2,4,5-Tetracyanobenzene is 178.150.
Q: What is the boiling point of 1,2,4,5-Tetracyanobenzene?
A: Boiling point of 1,2,4,5-Tetracyanobenzene is 446.1±45.0 °C at 760 mmHg.
Q: What is the safety information for 1,2,4,5-Tetracyanobenzene?
A: Safety information for 1,2,4,5-Tetracyanobenzene: S36/37/39-S45.
Q: What is the molecular formula of 1,2,4,5-Tetracyanobenzene?
A: Molecular formula of 1,2,4,5-Tetracyanobenzene is C10H2N4.
Q: What is the CAS number of 1,2,4,5-Tetracyanobenzene?
A: CAS number of 1,2,4,5-Tetracyanobenzene is 712-74-3.
Q: What is the LogP of 1,2,4,5-Tetracyanobenzene?
A: LogP of 1,2,4,5-Tetracyanobenzene is -0.85.
Q: What is the melting point of 1,2,4,5-Tetracyanobenzene?
A: Melting point of 1,2,4,5-Tetracyanobenzene is 265-268 °C(lit.).
Q: What English synonyms does 1,2,4,5-Tetracyanobenzene have?
A: English synonyms of 1,2,4,5-Tetracyanobenzene: Benzol-1,2,4,5-tetracarbonitril, MFCD00043481, 1,2,4,5-Benzenetetracarbonitrile, benzene-1,2,4,5-tetracarbonitrile, 1,2,4,5-TETRACYANOBENZENE.
Q: What is the SMILES notation of 1,2,4,5-Tetracyanobenzene?
A: SMILES notation of 1,2,4,5-Tetracyanobenzene is N#Cc1cc(C#N)c(C#N)cc1C#N.
Q: What is the English name of 1,2,4,5-Tetracyanobenzene?
A: The English name of 1,2,4,5-Tetracyanobenzene is 1,2,4,5-Tetracyanobenzene.

 1,2,4,5-TETRACYANOBENZENEfactory

This table lists manufacturers and suppliers of this compound, including vendor names and product supply reference information.

Shanghai Nianxing Industrial Co., Ltd
Dayang Chem (Hangzhou) Co., Ltd.
The content on this webpage is sourced from various professional data sources. If you have any questions or concerns regarding the content, please feel free to contact service1@chemsrc.com.