(19S)-2,16-Didehydro-19,20-diacetoxycuran-17-oic acid methyl ester is a complex organic compound belonging to the class of curcuminoids, which are derived from the rhizome of the Curcuma longa plant, commonly known as turmeric. This specific compound features a curan skeleton with a double bond between carbons 2 and 16, and hydroxyl groups at positions 19 and 20 that are acetylated. The carboxylic acid group at position 17 is esterified with a methyl group, which is indicated by the "methyl ester" part of the name. This chemical structure endows it with potential biological activities, although its specific properties, such as anti-inflammatory or antioxidant effects, would require further investigation and are not detailed in this summary. The compound's name reflects its structural features, with the "(19S)" indicating the stereochemistry at the 19th carbon, and the "didehydro" referring to the presence of two hydrogens missing, forming a double bond.

2111-85-5

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Basic information
1. Product Name: (19S)-2,16-Didehydro-19,20-diacetoxycuran-17-oic acid methyl ester
2. Synonyms: (19S)-2,16-Didehydro-19,20-diacetoxycuran-17-oic acid methyl ester;Compactinervine diacetate
3. CAS NO:2111-85-5
4. Molecular Formula: C24H28N2O6
5. Molecular Weight: 440.48892
6. EINECS: N/A
7. Product Categories: N/A
8. Mol File: 2111-85-5.mol
Chemical Properties
1. Melting Point: 198 °C
2. Boiling Point: 552.2±50.0 °C(Predicted)
3. Flash Point: N/A
4. Appearance: /
5. Density: 1.34±0.1 g/cm3(Predicted)
6. Refractive Index: N/A
7. Storage Temp.: N/A
8. Solubility: N/A
9. PKA: 6.21±0.60(Predicted)
10. CAS DataBase Reference: (19S)-2,16-Didehydro-19,20-diacetoxycuran-17-oic acid methyl ester(CAS DataBase Reference)
11. NIST Chemistry Reference: (19S)-2,16-Didehydro-19,20-diacetoxycuran-17-oic acid methyl ester(2111-85-5)
12. EPA Substance Registry System: (19S)-2,16-Didehydro-19,20-diacetoxycuran-17-oic acid methyl ester(2111-85-5)
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: 2111-85-5(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 2111-85-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,1,1 and 1 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 2111-85:
(6*2)+(5*1)+(4*1)+(3*1)+(2*8)+(1*5)=45
45 % 10 = 5
So 2111-85-5 is a valid CAS Registry Number.

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