Cas no 501-30-4 (Kojic acid)

Kojic acid is a naturally derived compound that inhibits melanin production, reducing the appearance of hyperpigmentation. Its key advantages lie in its efficacy against various skin discolorations and its stability under different pH conditions, making it an effective ingredient for topical formulations targeting skin tone uniformity.

Kojic acid structure

Product Name:Kojic acid

CAS No:501-30-4

MF:C₆H₆O₄

MW:142.1094

MDL:MFCD00006580

CID:37827

PubChem ID:3840

Update Time:2025-09-03

Kojic acid Chemical and Physical Properties

Names and Identifiers

- 5-Hydroxy-2-(hydroxymethyl)-4H-pyran-4-one
- 2-HYDROXYMETHYL-5-HYDROXY-4-PYRONE
- 2-HYDROXYMETHYL-5-HYDROXY-GAMMA-PYRONE
- 5'-HYDROXY-2-(HYDROXYMETHYL)-1,4-PYRANONE
- 5-HYDROXY-2-HYDROXYMETHYL-4H-4-PYRANONE
- 5-HYDROXY-2-HYDROXYMETHYL-4-PYRANONE
- 5-HYDROXY-2-(HYDROXYMETHYL)-4-PYRONE
- 5-HYDROXY-2-HYDROXYMETHYL-PYRAN-4-ONE
- KJ ACID
- TIMTEC-BB SBB005397
- 4H-Pyran-4-one, 5-hydroxy-2-(hydroxymethyl)-
- kojic
- Pyran-4-one, 5-hydroxy-2-(hydroxymethyl)
- 5-Hydroxy-2-(hydroxymethyl)-4H-pyran-4-one 5-Hydroxy-2-(hydroxymethyl)-4H-pyran-4-one
- Kojic acid(whitening agent in cosmetic)
- KOJIC ACID CRYSTALLINE
- Kojic acid
- 5-hydroxy-2-(hydroxymethyl)pyran-4-one
- KOJIC ACID(RG)
- 2-(hydroxymethyl)-5-hydroxy-4H-pyran-4-one
- 2-Hydroxymethyl-5-hydroxy-γ-pyrone
- 3-hydroxy-6-hydroxymethyl-4H-pyran-4-one
- 4H-PYRAN-4-ONE,5-HYDROXY-2-(HYDROXYMETHYL)
- 5-hydroxy-2-(hydroxmetyl)-4H-pyran-4-one
- UNII-6K23F1TT52
- 5-Hydroxy-2-hydroxymethyl-4-pyrone
- acido kojico
- 5-Hydroxy-2-hydroxymethyl-4
- 501-30-4
- Kojisaeure
- MFCD00006580
- HMS502O05
- IDI1_000923
- Spectrum5_001085
- 2-HYDROXYMETHYL-5-HYDROXY-.GAMMA.-PYRONE
- NCGC00142361-01
- BRN 0120895
- Spectrum_000191
- 2-Hydroxymethyl-5-hydroxy-4H-pyran-4-one
- s5174
- KBio2_005807
- KOJIC ACID [IARC]
- CCRIS 4131
- HSDB 7664
- Z104484860
- Oprea1_038773
- NCGC00017325-06
- NCGC00017325-10
- NSC 1942
- AC-11658
- F0001-1307
- CCG-38458
- 5-Hydroxy-2-hydroxymethyl-I(3)-pyron
- HMS3604L04
- KOJIC ACID (IARC)
- NS00013805
- SCHEMBL36895
- DTXSID2040236
- KOJIC ACID [MI]
- 6K23F1TT52
- TNP00261
- 123712-78-7
- KOJIC ACID (MART.)
- DTXCID0020236
- KBio3_002508
- BDBM50031467
- CAS-501-30-4
- C65A72E0-0E46-4AF4-AA68-178ECA2E5FCC
- 5-18-02-00516 (Beilstein Handbook Reference)
- KBio1_000923
- Tox21_110814
- KUC106760N
- KBioSS_000671
- KBioGR_001002
- NCGC00017325-05
- ACon1_000622
- NINDS_000923
- HY-W050154
- 2-Hydroxymethyl-5-hydroxy-?-pyrone
- NCGC00017325-03
- KBio2_003239
- SPBio_001875
- NSC-1942
- STK801688
- SR-01000945134-1
- 5-Hydroxy-2-hydroxymethyl-4H-pyran-4-one
- Kojic acid, purum, >=98.0% (HPLC)
- NCGC00017325-04
- Tox21_113449
- EINECS 207-922-4
- KBio2_000671
- CHEBI:43572
- K0012
- K-7000
- KOJIC ACID [MART.]
- Spectrum4_000571
- Natural Kojic Acid Powder
- Spectrum2_001828
- Tox21_110814_1
- BBL010645
- NCGC00017325-01
- SR-01000945134
- K0010
- BSPBio_003288
- AI3-02549
- KOJIC ACID [WHO-DD]
- InChI=1/C6H6O4/c7-2-4-1-5(8)6(9)3-10-4/h1,3,7,9H,2H2
- CHEMBL287556
- NCGC00168903-01
- CS-0032701
- KSC-11-228-2
- Kojic acid, analytical standard
- NSC1942
- KOJIC ACID [HSDB]
- WLN: T6O DVJ B1Q EQ
- NCGC00168903-02
- BEJNERDRQOWKJM-UHFFFAOYSA-
- Spectrum3_001704
- C91105
- Q416285
- DivK1c_000923
- SY018009
- MEGxm0_000388
- NCGC00017325-02
- DB01759
- AS-11648
- BIDD:ER0501
- SMP1_000171
- NCGC00181145-01
- AKOS000120649
- EN300-20919
- MDL： MFCD00006580
- Inchi： 1S/C6H6O4/c7-2-4-1-5(8)6(9)3-10-4/h1,3,7,9H,2H2
- InChI Key： BEJNERDRQOWKJM-UHFFFAOYSA-N
- SMILES： O1C=C(C(C=C1CO)=O)O
- BRN： 0120895

Computed Properties

Exact Mass: 142.02700
Monoisotopic Mass: 142.026609
Isotope Atom Count: 0
Hydrogen Bond Donor Count: 2
Hydrogen Bond Acceptor Count: 4
Heavy Atom Count: 10
Rotatable Bond Count: 1
Complexity: 214
Covalently-Bonded Unit Count: 1
Defined Atom Stereocenter Count: 0
Undefined Atom Stereocenter Count : 0
Defined Bond Stereocenter Count: 0
Undefined Bond Stereocenter Count: 0
Surface Charge: 0
Tautomer Count: 2
XLogP3: -0.9
Topological Polar Surface Area: 66.8

Experimental Properties

Color/Form: Powder
Density: 1.1712 (rough estimate)
Melting Point: 152-155?°C (lit.)
Boiling Point: 401.7°C at 760 mmHg
Flash Point: 179.9 °C
Refractive Index: 1.4434 (estimate)
Water Partition Coefficient: dissolution
Stability/Shelf Life: Stable. Combustible. Incompatible with strong oxidizing agents.
PSA: 70.67000
LogP: -0.16230
Merck: 5317
pka: 7.9(at 25℃)
λmax: 269(CHCl3)(lit.)
Solubility: It is easily soluble in water, alcohol and acetone, slightly soluble in ether, ethyl acetate, chloroform and pyridine, and insoluble in benzene.

Kojic acid Security Information

Signal Word：Warning
Hazard Statement： H302
Warning Statement： P280-P305+P351+P338
Hazardous Material transportation number：NONH for all modes of transport
WGK Germany：3
Hazard Category Code： S24/25:Prevent skin and eye contact.
Safety Instruction： S22-S24/25
RTECS：UQ0875000
Hazardous Material Identification：
Storage Condition：Powder -20°C 3 years ? 4°C 2 years In solvent -80°C 6 months ? -20°C 1 month
Safety Term：S24/25
Risk Phrases：R40

Kojic acid Customs Data

HS CODE：29329995
Customs Data：

China Customs Code:
2932999099

Overview:

2932999099. Other heterocyclic compounds containing only oxygen heteroatoms. VAT:17.0%. Tax refund rate:13.0%. Regulatory conditions:nothing. MFN tariff:6.5%. general tariff:20.0%

Declaration elements:

Product Name, component content, use to

Summary:

2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Kojic acid Pricemore >>

Related Categories	No.	Product Name	Cas No.	Purity	Specification	Price	update time
TI XI AI ( SHANG HAI ) HUA CHENG GONG YE FA ZHAN Co., Ltd.	K0010-500G	Kojic Acid	501-30-4	>98.0%(T)	500g	￥2900.00	2024-04-16
TRC	K655080-5g	Kojic Acid	501-30-4		5g	$ 51.00	2023-09-07
TRC	K655080-10g	Kojic Acid	501-30-4		10g	$ 68.00	2023-09-07
TRC	K655080-25g	Kojic Acid	501-30-4		25g	$ 138.00	2023-09-07
TRC	K655080-50g	Kojic Acid	501-30-4		50g	$215.00	2023-05-18
TRC	K655080-100g	Kojic Acid	501-30-4		100g	$357.00	2023-05-18
SHANG HAI YUAN YE Biotechnology Co., Ltd.	B24221-20mg	Kojic acid	501-30-4	,HPLC≥98%	20mg	￥240.00	2022-01-07
ChemScence	CS-0032701-500g	Kojic acid	501-30-4	99.99%	500g	$42.0	2022-04-27
ChemScence	CS-0032701-1000g	Kojic acid	501-30-4	99.99%	1000g	$71.0	2021-09-02
SHANG HAI YI EN HUA XUE JI SHU Co., Ltd.	R005375-100g	Kojic acid	501-30-4	99%	100g	￥94	2024-10-30

Kojic acid Suppliers

Tiancheng Chemical (Jiangsu) Co., Ltd

Gold Member

Audited Supplier

(CAS:501-30-4)Kojic acid2-Hydroxymethyl-5-hydroxy-γ-pyrone 5-Hydroxy-2-hydroxymethyl-4H-4-pyranone

Order Number:LE18755;LE6528;LE2467861

Stock Status:in Stock

Quantity:25KG,200KG,1000KG

Purity:99%

Pricing Information Last Updated:Friday, 20 June 2025 12:20

Price ($):discuss personally

Email:[email protected]

Suzhou Senfeida Chemical Co., Ltd

Gold Member

Audited Supplier

(CAS:501-30-4)Kojic acid

Order Number:sfd16343

Stock Status:in Stock

Quantity:200kg

Purity:99.9%

Pricing Information Last Updated:Friday, 19 July 2024 14:37

Price ($):discuss personally

Email:[email protected]

Product Official Link

Kojic acid Spectrogram

GC-MS

1H NMR

300 MHz

DMSO

13C NMR

Kojic acid Related Literature

1. Hydroxypyridinones with enhanced iron chelating properties. Synthesis, characterization and in vivo tests of 5-hydroxy-2-(hydroxymethyl)pyridine-4(1H)-one

J. I. Lachowicz,V. M. Nurchi,G. Crisponi,M. G. Jaraquemada-Pelaez,M. Arca,A. Pintus,M. A. Santos,C. Quintanova,L. Gano,Z. Szewczuk,M. A. Zoroddu,M. Peana,A. Domínguez-Martín,D. Choquesillo-Lazarte Dalton Trans. 2016 45 6517
2. Sonochemistry in an organocatalytic domino reaction: an expedient multicomponent access to structurally functionalized dihydropyrano[3,2-b]pyrans, spiro-pyrano[3,2-b]pyrans, and spiro-indenoquinoxaline-pyranopyrans under ambient conditions

Biplob Borah,Jahnu Bora,Pambala Ramesh,L. Raju Chowhan RSC Adv. 2022 12 12843
3. Study of the DNA binding mechanism and in vitro activity against cancer cells of iron(iii) and aluminium(iii) kojic acid derivative complexes

Joanna I. Lachowicz,Anna Mateddu,Pierpaolo Coni,Claudia Caltagirone,Sergio Murgia,Dan Gibson,Gabriele dalla Torre,Xabier Lopez,Federico Meloni,Giuseppina Pichiri Dalton Trans. 2022 51 6254
4. Bis-maltol-polyamine family: structural modifications at strategic positions. Synthesis, coordination and antineoplastic activity of two new ligands

Luca Giorgi,Gianluca Ambrosi,Daniele Paderni,Luca Conti,Stefano Amatori,Francesca Romagnoli,Patrizia Rossi,Mauro Formica,Eleonora Macedi,Claudia Giorgi,Paola Paoli,Mirco Fanelli,Vieri Fusi New J. Chem. 2021 45 2659
5. Mono and dinuclear areneruthenium(ii) triazoles by 1,3-dipolar cycloadditions to a coordinated azide in ruthenium(ii) compounds

Keisham Sarjit Singh,Volodymyr Svitlyk,Yurij Mozharivskyj Dalton Trans. 2011 40 1020

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501-30-4 (Kojic acid) Related Products

Recommended suppliers

Tiancheng Chemical (Jiangsu) Co., Ltd

(CAS:501-30-4)Kojic acid2-Hydroxymethyl-5-hydroxy-γ-pyrone 5-Hydroxy-2-hydroxymethyl-4H-4-pyranone

Purity:99%/99%/99%

Quantity:25KG,200KG,1000KG/25KG,200KG,1000KG/25KG,200KG,1000KG

Price ($):Inquiry/Inquiry/Inquiry