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4-Cyanobenzoic acid

CAS No.
619-65-8
Chemical Name:
4-Cyanobenzoic acid
Synonyms
4-cyanobenzoate;NSC 6306;4-cyanobenzoic;Cyanobenzoicacid;4-Cyanobenzicacid;4-cyano-benzoicaci;4-Cyanobenoic acid;P-CYANOBENZOIC ACID;RARECHEM AL BE 0074;TIMTEC-BB SBB008570
CBNumber:
CB7751963
Molecular Formula:
C8H5NO2
Molecular Weight:
147.13
MDL Number:
MFCD00002528
MOL File:
619-65-8.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-05-28 03:25:22

4-Cyanobenzoic acid Properties

Melting point 219-221 °C (dec.)(lit.)
Boiling point 267.22°C (rough estimate)
Density 1.3067 (rough estimate)
refractive index 1.5510 (estimate)
storage temp. Store below +30°C.
solubility Soluble in methanol.
form Crystalline Powder
pka 3.55(at 25℃)
color White to yellow-beige
Water Solubility 1.2g/L
Sensitive Air Sensitive
BRN 1862865
Stability Stable. Incompatible with strong oxidizing agents, strong acids, strong bases.
InChI 1S/C8H5NO2/c9-5-6-1-3-7(4-2-6)8(10)11/h1-4H,(H,10,11)
InChIKey ADCUEPOHPCPMCE-UHFFFAOYSA-N
LogP 1.56
CAS DataBase Reference 619-65-8(CAS DataBase Reference)
FDA UNII 50Z9A3423Z
NIST Chemistry Reference Benzoic acid, 4-cyano-(619-65-8)
EPA Substance Registry System Benzoic acid, 4-cyano- (619-65-8)
UNSPSC Code 12352106
NACRES NA.23

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H302+H312+H332-H315-H319-H335
Precautionary statements  P501-P261-P270-P271-P264-P280-P337+P313-P305+P351+P338-P362+P364-P332+P313-P301+P312+P330-P302+P352+P312-P304+P340+P312-P403+P233-P405
target organs Respiratory system
Hazard Codes  Xn,Xi
Risk Statements  20/21/22-36/37/38
Safety Statements  26-36-22
RIDADR  3276
WGK Germany  3
Hazard Note  Harmful/Irritant/Air Sensitive
TSCA  TSCA listed
HazardClass  6.1
PackingGroup  III
HS Code  29269095
Storage Class 11 - Combustible Solids
Hazard Classifications Eye Irrit. 2
Skin Irrit. 2
STOT SE 3
REACH Registrations Active
NFPA 704
0
2 0

4-Cyanobenzoic acid price More Price(56)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich C89803 4-Cyanobenzoic acid 99% 619-65-8 5g $62.5 2026-04-30 Buy
Sigma-Aldrich C89803 4-Cyanobenzoic acid 99% 619-65-8 25g $210 2026-04-30 Buy
TCI Chemical C0445 4-Cyanobenzoic Acid >98.0%(GC)(T) 619-65-8 5g $25 2026-04-30 Buy
TCI Chemical C0445 4-Cyanobenzoic Acid >98.0%(GC)(T) 619-65-8 25g $60 2026-04-30 Buy
TRC TRC-C962325-5G 4-Cyanobenzoic Acid 619-65-8 5g $59 2026-06-03 Buy
Product number Packaging Price Buy
C89803 5g $62.5 Buy
C89803 25g $210 Buy
C0445 5g $25 Buy
C0445 25g $60 Buy
TRC-C962325-5G 5g $59 Buy

4-Cyanobenzoic acid Chemical Properties, Uses, Production

Chemical Properties

white powder

Uses

An inhibitor. The studies show that 4-cyanobenzaldehyde and 4-cyanobenzoic acid can inhibit both the monophenolase activity and the diphenolase activity of mushroom tyrosinase.

Uses

4-Cyanobenzoic acid is used as an inhibitor. 4-cyanobenzaldehyde and 4-cyanobenzoic acid can inhibit both the monophenolase activity and the diphenolase activity of mushroom tyrosinase.

Synthesis Reference(s)

Tetrahedron Letters, 31, p. 7223, 1990 DOI: 10.1016/S0040-4039(00)97285-X

Purification Methods

Crystallise the acid from water and dry it in a vacuum desiccator over Sicapent. [Beilstein 9 IV 3324.]

Global Suppliers ( 410)
Supplier Tel Email Country ProdList Advantage
Xinyang Longye Chemical Products Co., Ltd. 15737681111 705829620@qq.com China 293 58
YUANSHU PHARMACEUTICAL TECHNOLOGY CO.,LTD 025-84823350To8002 18251967190 sales1@a-starchemical.com China 83 58
Beijing Bankchem Pharmatech Co.,Ltd. 010-80236392 17600588818 bankchem@163.com China 247 58
Shanghai Taijilin Industrial Co., Ltd. 02150630626 17717886015 kate@tajilin.com China 1340 58
BEIJING ODYSSEY CHEMICALS CO.,LTD 10-88018188-315 17502279376 kallisto@bj-odyssey.com China 32 58
Meryer (Shanghai) Chemical Technology Co., Ltd. 4006356688 18621169109 market03@meryer.com China 40202 62
INTATRADE GmbH +49 3493/605464 sales@intatrade.de Germany 3563 66
Alfa Aesar 400-6106006 saleschina@alfa-asia.com China 30103 84
TAIYUAN RHF CO.,LTD. +86 351 7031519 sales@RHFChem.com China 2334 56
TCI (Shanghai) Development Co., Ltd. 021-67121386 Sales-CN@TCIchemicals.com China 24512 81

View Latest Price from 4-Cyanobenzoic acid manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
4-Cyanobenzoic acid pictures 2026-03-20 4-Cyanobenzoic acid
619-65-8
$10.00 1KG 99% 10 mt Hebei Chuanghai Biotechnology Co., Ltd
4-Cyanobenzoic acid pictures 2025-06-20 4-Cyanobenzoic acid
619-65-8
$1.00 1kg 99% 20tons Hebei Yanxi Chemical Co., Ltd.
4-Cyanobenzoic acid pictures 2022-02-22 4-Cyanobenzoic acid
619-65-8
1KG 99.5% 100 tons Honest Joy Holdings Limited
4-Cyanobenzoic acid,99% 4-Cyanobenzoic acid,Terephthalic acid mononitrile 4-Cyanobenzoic acid, 99% 25GR 4-Cyanobenzoic acid, 99% 5GR NSC 6306 Benzoicacid, 4-cyano- The cyano benzoic acid 4-cyanobenzoate 4-Cyanobenzoic acid,98% 4-Cyanobenzoic Acid/4-Carboxybenzonitrile P-CYANOBENZOIC ACID TEREPHTHALIC ACID MONONITRILE RARECHEM AL BE 0074 TIMTEC-BB SBB008570 4-cyanobenzoic 4-cyano-benzoicaci Benzoic acid, p-cyano- p-Carboxybenzonitrile Terephthalic mononitrile 4-CARBOXYBENZONITRILE 4-Cyanobenzoic acid p-Cyanobenzoic acid 4-CYANOBENZOIC ACID 4-Cyanobenoic acid Benzoic acid, 4-cyano- (9CI) Cyanobenzoicacid 4-Cyanobenzoic Acid > 4-CYANOBENZOIC ACID FOR SYNTHESIS 4-Cyanobenzicacid TIANFUCHEM--High purity 4-Cyanobenzoic acid factory price P-cyanobenzylamine hydrochloride 13C6]-4-Cyanobenzoic acid 4-cyanobenzenecarboxylic acid paracyanobenzoic acid 619-65-8 619-5-8 135541-10-6 84020-26-7 C8H5N1O2 NCC6H4COOH Carbonyl Compounds Carboxylic Acids C8 Building Blocks Exciton Chirality CD Method (for Hydroxyl Groups) Benzonitriles (Building Blocks for Liquid Crystals) Enantiomer Excess & Absolute Conefiguration Determination Building Blocks for Liquid Crystals Absolute Conefiguration Determination (Exciton Chirality CD Method) Organic Building Blocks Aromatic Carboxylic Acids, Amides, Anilides, Anhydrides & Salts Liquid Crystals Building Blocks C8 Carbonyl Compounds Carboxylic Acids Chemical Synthesis Materials Science Organic and Printed Electronics