Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: 4-Methyltetrahydrophthalic anhydride
Price: ￥578.0/25g ￥228.0/5g
Purity: 98.0%
Stocking Period: 3 Day
Contact: Liu jia

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 1,2,3,6-Tetrahydro-4-methylphthalic anhydride
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang

Zhejiang Hangyu API Co., Ltd
China
Product Name: 1,2,3,6-Tetrahydro-4-methylphthalic anhydride
Price: ￥Inquiry/1kg
Purity: 99.5%
Stocking Period: Inquiry
Contact: Vinnie

3425-89-6

3425-89-6 structure

3425-89-6 structure

Name: 4-Methyltetrahydrophthalic anhydride
Chemical Name: 5-methyl-3a,4,7,7a-tetrahydro-2-benzofuran-1,3-dione
CAS Number: 3425-89-6
Molecular Formula: C₉H₁₀O₃
Molecular Weight: 166.174
Catalog: Chemical reagent Organic reagent Carboxylic anhydride
Create Date: 2018-08-12 20:51:28
Modify Date: 2024-01-04 17:48:31

Name	5-methyl-3a,4,7,7a-tetrahydro-2-benzofuran-1,3-dione
Synonyms	Methyltetrahydrophthalic anhydride,MTHPA 5-Methyl-3a,4,5,7a-tetrahydro-2-benzofuran-1,3-dione Isomethyltetrahydrophthalic anhydride 3a,4,7,7atetrahydro-5-methylisobenzofuran-1,3-dione 1,3-Isobenzofurandione,3a,4,7,7a-tetrahydro-5-methyl 1,2,3,6-Tetrahydro-4-methylphthalic anhydride 4,4-methyltetrahydrophthalic anhydride 4-Methyltetrahydrophthalic anhydride 4-methylcyclohex-4-ene-1,2-dicarboxylic acid anhydride 1,3-Isobenzofurandione, 3a,4,5,7a-tetrahydro-5-methyl- 4-Methyl-1,2,3,6-tetrahydrophthalic anhydride EINECS 222-323-8 4-Methyl-4-cyclohexene-1,2-dicarboxylic Anhydride MFCD00067707 4-Methyl-Δ4-tetrahydrophthalic Anhydride

Density	1.2±0.1 g/cm3
Boiling Point	303.0±41.0 °C at 760 mmHg
Melting Point	59-60°C
Molecular Formula	C₉H₁₀O₃
Molecular Weight	166.174
Flash Point	142.9±24.8 °C
Exact Mass	166.062988
PSA	43.37000
LogP	0.57
Vapour Pressure	0.0±0.6 mmHg at 25°C
Index of Refraction	1.508

Hazard Codes	Xn
Risk Phrases	R41;R42/43
Safety Phrases	S22-S24-S26-S37/39
RIDADR	3335
HS Code	2932999099

108-31-6 structure

108-31-6

78-79-5 structure

78-79-5

~95%

3425-89-6 structure

3425-89-6

Literature: Zhu, Zuolin; Espenson, James H. Journal of the American Chemical Society, 1997 , vol. 119, # 15 p. 3507 - 3512

78-79-5 structure

78-79-5

~%

3425-89-6 structure

3425-89-6

Literature: US4559405 A1, ;

Precursor 2
108-31-6 78-79-5
DownStream 8
4316-23-8 99-94-5 2028-11-7 19438-61-0
19438-59-6 19438-60-9 19438-64-3 100-21-0

HS Code	2932999099
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%