5,6-dimethyl-3a,4,7,7a-tetrahydro-2-benzofuran-1,3-dione is a complex organic compound belonging to the class of benzofuran derivatives. It features a benzofuran ring structure with a 1,3-dione functional group, which consists of two carbonyl groups (C=O) at the 1st and 3rd positions. Additionally, it has two methyl groups (CH3) attached at the 5th and 6th positions of the benzofuran ring. The compound is characterized by its tetrahydro nature, indicating the presence of four hydrogen atoms in the molecule, which contribute to its stability and reactivity. This chemical structure is significant in various applications, such as pharmaceuticals and agrochemicals, due to its potential biological activities and chemical properties.

13303-36-1

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Basic information
1. Product Name: 5,6-dimethyl-3a,4,7,7a-tetrahydro-2-benzofuran-1,3-dione
2. Synonyms: 1,3-Isobenzofurandione, 3a,4,7,7a-tetrahydro-5,6-dimethyl-; 5,6-Dimethyl-3a,4,7,7a-tetrahydro-2-benzofuran-1,3-dione
3. CAS NO:13303-36-1
4. Molecular Formula: C₁₀H₁₂O₃
5. Molecular Weight: 180.2005
6. EINECS: N/A
7. Product Categories: N/A
Chemical Properties
1. Melting Point: N/A
2. Boiling Point: 314.7°C at 760 mmHg
3. Flash Point: 147.1°C
4. Appearance: N/A
5. Density: 1.17g/cm³
6. Vapor Pressure: 0.000458mmHg at 25°C
7. Refractive Index: 1.506
8. Storage Temp.: N/A
9. Solubility: N/A
10. CAS DataBase Reference: 5,6-dimethyl-3a,4,7,7a-tetrahydro-2-benzofuran-1,3-dione(CAS DataBase Reference)
11. NIST Chemistry Reference: 5,6-dimethyl-3a,4,7,7a-tetrahydro-2-benzofuran-1,3-dione(13303-36-1)
12. EPA Substance Registry System: 5,6-dimethyl-3a,4,7,7a-tetrahydro-2-benzofuran-1,3-dione(13303-36-1)
Safety Data
1. Hazard Codes: N/A
2. Statements: N/A
3. Safety Statements: N/A
4. WGK Germany:
5. RTECS:
6. HazardClass: N/A
7. PackingGroup: N/A
8. Hazardous Substances Data: 13303-36-1(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 13303-36-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,3,0 and 3 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 13303-36:
(7*1)+(6*3)+(5*3)+(4*0)+(3*3)+(2*3)+(1*6)=61
61 % 10 = 1
So 13303-36-1 is a valid CAS Registry Number.

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