Cas 852720-16-2,Phthalic acid 1-((1R,3aS,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-3a-benzyloxycarbonyl-1-isopropenyl-5a,5b,8,8,11a-pentamethyl-icosahydro-cyclopenta[a]chrysen-9-yl) ester 2-ethyl ester

852720-16-2

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Basic information

Product Name: Phthalic acid 1-((1R,3aS,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-3a-benzyloxycarbonyl-1-isopropenyl-5a,5b,8,8,11a-pentamethyl-icosahydro-cyclopenta[a]chrysen-9-yl) ester 2-ethyl ester
Synonyms: Phthalic acid 1-((1R,3aS,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-3a-benzyloxycarbonyl-1-isopropenyl-5a,5b,8,8,11a-pentamethyl-icosahydro-cyclopenta[a]chrysen-9-yl) ester 2-ethyl ester
CAS NO:852720-16-2
Molecular Formula:
Molecular Weight: 723.006
EINECS: N/A
Product Categories: N/A

Chemical Properties

Melting Point: N/A
Boiling Point: N/A
Flash Point: N/A
Appearance: N/A
Density: N/A
Refractive Index: N/A
Storage Temp.: N/A
Solubility: N/A
CAS DataBase Reference: Phthalic acid 1-((1R,3aS,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-3a-benzyloxycarbonyl-1-isopropenyl-5a,5b,8,8,11a-pentamethyl-icosahydro-cyclopenta[a]chrysen-9-yl) ester 2-ethyl ester(CAS DataBase Reference)
NIST Chemistry Reference: Phthalic acid 1-((1R,3aS,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-3a-benzyloxycarbonyl-1-isopropenyl-5a,5b,8,8,11a-pentamethyl-icosahydro-cyclopenta[a]chrysen-9-yl) ester 2-ethyl ester(852720-16-2)
EPA Substance Registry System: Phthalic acid 1-((1R,3aS,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-3a-benzyloxycarbonyl-1-isopropenyl-5a,5b,8,8,11a-pentamethyl-icosahydro-cyclopenta[a]chrysen-9-yl) ester 2-ethyl ester(852720-16-2)

Safety Data

Hazard Codes: N/A
Statements: N/A
Safety Statements: N/A
WGK Germany:
RTECS:
HazardClass: N/A
PackingGroup: N/A
Hazardous Substances Data: 852720-16-2(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 852720-16-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,2,7,2 and 0 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 852720-16:
(8*8)+(7*5)+(6*2)+(5*7)+(4*2)+(3*0)+(2*1)+(1*6)=162
162 % 10 = 2
So 852720-16-2 is a valid CAS Registry Number.

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852720-16-2Relevant academic research and scientific papers

Synthesis of phthalates of betulinic acid and betulin with cytotoxic activity

Kvasnica, Miroslav,Sarek, Jan,Klinotova, Eva,Dzubak, Petr,Hajduch, Marian

, p. 3447 - 3454 (2007/10/03)

Synthesis of 3β-O-phthalic esters from betulinic acid and its esters and synthesis of phthalic esters from betulin and its monoacetates using classical acylation procedure with phthalic anhydride. The evaluation of cytotoxicity of the prepared compounds was using numbers of tumor cell lines in MTT test. It was discovered that hemiphthalic esters had better cytotoxicity than starting compounds as betulinic acid or quite inactive betulin.

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