DEHYDROACETIC ACID
DEHYDROACETIC ACID is a cosmetic ingredient classified as Preservative. Also known as CAS 520-45-6. It is regulated in 23 markets including UAE, Armenia, Bahrain.
Also Known As
- CAS Number
- 4418-26-2, 771-03-9, 520-45-6, 16807-48-0
Market Overview — 29 Markets
Detailed Regulations
Europe2 regulations
- Chemical name
- 3-Acetyl-6-methylpyran-2,4(3H)-dione and its salts
- CAS
- 520-45-6 / 4418-26-2 / 16807-48-0
- Max concentration
- 0.6% (as acid)
- Other conditions
- Not to be used in aerosol dispensers (sprays)
Source: EC 1223/2009 Annex V
- Chemical name
- 3-Acetyl-6-methylpyran-2,4 (3H)-dione and its salts
- CAS
- 520-45-6, 4418-26-2, 16807-48-0
- Max concentration
- 0,6 % (as acid)
- Conditions of use
- Max: 0,6 % (as acid)
- Other conditions
- Not to be used in aerosol dispensers (sprays)
Source: UK retained EC 1223/2009 Annex V
Americas1 regulation
- Chemical name
- Ácido dehidroacético e seus sais
- CAS
- 520-45-6
- Max concentration
- 0,6% (expresso como ácido)
- Conditions of use
- Limitations: Proibido em sistemas pulverizávei s (como aerossóis e sprays).
Source: ANVISA RDC 528
East Asia & Oceania3 regulations
- Chemical name
- Dehydroacetic Acid
- Conditions of use
- * 배합한도 : 데하이드로아세틱애씨드로서 0.6% 에어로졸(스프레이에 한함) 제품에는 사용금지
Source: MFDS Korea Cosmetics Regulation
- Chemical name
- Dehydroacetic acid and dehydroacetate
- Max concentration
- 0.50%
- Conditions of use
- As total
Source: MHLW Standards for Cosmetics (Notification No.331 of 2000)
- Chemical name
- 3-Acetyl-6-methylpyran-2,4 (3H)-dione and its salts
- CAS
- 520-45-6/ 16807-48-0/ 4418-26-2
- Max concentration
- 0.6 % (以acid計)
- Conditions of use
- Not to be used in aerosol products
Source: TFDA Cosmetics Regulations
ASEAN6 regulations
- Chemical name
- 3-Acetyl-6-methylpyran-2,4 (3H)-dione (Dehydroacetic acid) and its salts / Dehydroacetic acid (, 16807- 48-0), Sodium dehydroacetate
- CAS
- 520-45-6
- Max concentration
- 0.6% (acid)
- Conditions of use
- Prohibited in aerosol dispensers (sprays)
Source: ASEAN Cosmetic Directive (HSA Dec 2025)
- Chemical name
- 3-Acetyl-6-methylpyran-2,4 (3H)-dione (Dehydroacetic acid) and its salts / Dehydroacetic acid (, 16807- 48-0), Sodium dehydroacetate
- CAS
- 520-45-6
- Max concentration
- 0.6% (acid)
- Conditions of use
- Prohibited in aerosol dispensers (sprays)
Source: ASEAN Cosmetic Directive (HSA Dec 2025)
- Chemical name
- 3-Acetyl-6-methylpyran-2,4 (3H)-dione (Dehydroacetic acid) and its salts / Dehydroacetic acid (, 16807- 48-0), Sodium dehydroacetate
- CAS
- 520-45-6
- Max concentration
- 0.6% (acid)
- Conditions of use
- Prohibited in aerosol dispensers (sprays)
Source: ASEAN Cosmetic Directive (HSA Dec 2025)
- Chemical name
- 3-Acetyl-6-methylpyran-2,4 (3H)-dione (Dehydroacetic acid) and its salts / Dehydroacetic acid (, 16807- 48-0), Sodium dehydroacetate
- CAS
- 520-45-6
- Max concentration
- 0.6% (acid)
- Conditions of use
- Prohibited in aerosol dispensers (sprays)
Source: ASEAN Cosmetic Directive (HSA Dec 2025)
- Chemical name
- 3-Acetyl-6-methylpyran-2,4 (3H)-dione (Dehydroacetic acid) and its salts / Dehydroacetic acid (, 16807- 48-0), Sodium dehydroacetate
- CAS
- 520-45-6
- Max concentration
- 0.6% (acid)
- Conditions of use
- Prohibited in aerosol dispensers (sprays)
Source: ASEAN Cosmetic Directive (HSA Dec 2025)
- Chemical name
- 3-Acetyl-6-methylpyran-2,4 (3H)-dione (Dehydroacetic acid) and its salts / Dehydroacetic acid (, 16807- 48-0), Sodium dehydroacetate
- CAS
- 520-45-6
- Max concentration
- 0.6% (acid)
- Conditions of use
- Prohibited in aerosol dispensers (sprays)
Source: ASEAN Cosmetic Directive (HSA Dec 2025)
GCC6 regulations
- Chemical name
- 3-Acetyl-6-methylpyran-2,4(3H)-dione and its salts
- CAS
- 520-45-6 / 4418-26-2 / 16807-48-0
- Max concentration
- 0.6% (as acid)
- Other conditions
- Not to be used in aerosol dispensers (sprays)
Source: GSO 1943:2024 (based on EU 1223/2009 V)
- Chemical name
- 3-Acetyl-6-methylpyran-2,4(3H)-dione and its salts
- CAS
- 520-45-6 / 4418-26-2 / 16807-48-0
- Max concentration
- 0.6% (as acid)
- Other conditions
- Not to be used in aerosol dispensers (sprays)
Source: GSO 1943:2024 (based on EU 1223/2009 V)
- Chemical name
- 3-Acetyl-6-methylpyran-2,4(3H)-dione and its salts
- CAS
- 520-45-6 / 4418-26-2 / 16807-48-0
- Max concentration
- 0.6% (as acid)
- Other conditions
- Not to be used in aerosol dispensers (sprays)
Source: GSO 1943:2024 (based on EU 1223/2009 V)
- Chemical name
- 3-Acetyl-6-methylpyran-2,4(3H)-dione and its salts
- CAS
- 520-45-6 / 4418-26-2 / 16807-48-0
- Max concentration
- 0.6% (as acid)
- Other conditions
- Not to be used in aerosol dispensers (sprays)
Source: GSO 1943:2024 (based on EU 1223/2009 V)
- Chemical name
- 3-Acetyl-6-methylpyran-2,4(3H)-dione and its salts
- CAS
- 520-45-6 / 4418-26-2 / 16807-48-0
- Max concentration
- 0.6% (as acid)
- Other conditions
- Not to be used in aerosol dispensers (sprays)
Source: GSO 1943:2024 (based on EU 1223/2009 V)
- Chemical name
- 3-Acetyl-6-methylpyran-2,4(3H)-dione and its salts
- CAS
- 520-45-6 / 4418-26-2 / 16807-48-0
- Max concentration
- 0.6% (as acid)
- Other conditions
- Not to be used in aerosol dispensers (sprays)
Source: GSO 1943:2024 (based on EU 1223/2009 V)
EAEU5 regulations
- Chemical name
- 3-Ацетил-6-метил-пиран-2,4(3H)-дион и ее соли (3-Acetil-6-methylpyran-2,4(3H)-dione and its salts)
- CAS
- 520-45-6
- Max concentration
- 0,6 процента (кислота)
- Other conditions
- запрещено использовать в аэрозолях
Source: TR CU 009/2011 Annex 4 (Preservatives) (Ref 13)
- Chemical name
- 3-Ацетил-6-метил-пиран-2,4(3H)-дион и ее соли (3-Acetil-6-methylpyran-2,4(3H)-dione and its salts)
- CAS
- 520-45-6
- Max concentration
- 0,6 процента (кислота)
- Other conditions
- запрещено использовать в аэрозолях
Source: TR CU 009/2011 Annex 4 (Preservatives) (Ref 13)
- Chemical name
- 3-Ацетил-6-метил-пиран-2,4(3H)-дион и ее соли (3-Acetil-6-methylpyran-2,4(3H)-dione and its salts)
- CAS
- 520-45-6
- Max concentration
- 0,6 процента (кислота)
- Other conditions
- запрещено использовать в аэрозолях
Source: TR CU 009/2011 Annex 4 (Preservatives) (Ref 13)
- Chemical name
- 3-Ацетил-6-метил-пиран-2,4(3H)-дион и ее соли (3-Acetil-6-methylpyran-2,4(3H)-dione and its salts)
- CAS
- 520-45-6
- Max concentration
- 0,6 процента (кислота)
- Other conditions
- запрещено использовать в аэрозолях
Source: TR CU 009/2011 Annex 4 (Preservatives) (Ref 13)
- Chemical name
- 3-Ацетил-6-метил-пиран-2,4(3H)-дион и ее соли (3-Acetil-6-methylpyran-2,4(3H)-dione and its salts)
- CAS
- 520-45-6
- Max concentration
- 0,6 процента (кислота)
- Other conditions
- запрещено использовать в аэрозолях
Source: TR CU 009/2011 Annex 4 (Preservatives) (Ref 13)
Frequently Asked Questions
Is DEHYDROACETIC ACID banned in any country?
DEHYDROACETIC ACID is not banned in any of the 26 markets tracked by Formpli. However, it may be subject to restrictions or conditions of use in some markets.
What are the restrictions on DEHYDROACETIC ACID in cosmetics?
DEHYDROACETIC ACID is restricted or has conditions of use in UAE, Armenia, Bahrain, Brazil, Belarus, European Union, Indonesia, Japan, Kyrgyzstan, South Korea, Kuwait, Kazakhstan, Malaysia, Oman, Philippines, Qatar, Russia, Saudi Arabia, Singapore, Thailand, Taiwan, United Kingdom, Vietnam. Restrictions may include maximum concentration limits, product type limitations, or mandatory labeling requirements. See the detailed regulations above for specifics.
Can I use DEHYDROACETIC ACID in cosmetics?
DEHYDROACETIC ACID is regulated in 23 markets. It has restrictions in UAE, Armenia, Bahrain, Brazil, Belarus, European Union, Indonesia, Japan, Kyrgyzstan, South Korea, Kuwait, Kazakhstan, Malaysia, Oman, Philippines, Qatar, Russia, Saudi Arabia, Singapore, Thailand, Taiwan, United Kingdom, Vietnam. Use Formpli's free screening tool to check your full ingredient list against all 26 markets at once.
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Check Ingredients FreeThis information is for reference only and does not constitute legal or regulatory advice. Regulations change — always verify with official sources and consult a regulatory specialist before exporting cosmetic products. Data sourced from EU COSING, US FDA, Health Canada, MHLW Japan, MFDS Korea, ASEAN ACD, GCC SFDA, TGA Australia, ANVISA Brazil, EAEU TR CU, and Taiwan TFDA.