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
| 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) | ![]() 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 |
|
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 |
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.]
4-Cyanobenzoic acid Preparation Products And Raw materials
Raw materials
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Preparation Products
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| Supplier | Tel | 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 | |
|---|---|---|---|---|---|---|---|---|
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2026-03-20 | 4-Cyanobenzoic acid
619-65-8
|
$10.00 | 1KG | 99% | 10 mt | Hebei Chuanghai Biotechnology Co., Ltd | |
![]() |
2025-06-20 | 4-Cyanobenzoic acid
619-65-8
|
$1.00 | 1kg | 99% | 20tons | Hebei Yanxi Chemical Co., Ltd. | |
![]() |
2022-02-22 | 4-Cyanobenzoic acid
619-65-8
|
1KG | 99.5% | 100 tons | Honest Joy Holdings Limited |
-

- 4-Cyanobenzoic acid
619-65-8
- $10.00
- 99%
- Hebei Chuanghai Biotechnology Co., Ltd
-

- 4-Cyanobenzoic acid
619-65-8
- $1.00
- 99%
- Hebei Yanxi Chemical Co., Ltd.
-

- 4-Cyanobenzoic acid
619-65-8
- $0.00
- 99.5%
- Honest Joy Holdings Limited
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