3521-62-8 Usage
Chemical Properties
Long Needles
Originator
Ilosone,Dista,US,1958
Uses
Different sources of media describe the Uses of 3521-62-8 differently. You can refer to the following data:
1. Used as an antibacterial agent. LD50 >5000 mg/kg for oral administration to rats
2. Macrolides Antibiotics
3. Used as an antibacterial agent. LD50 >5000 mg/kg for oral administration to rats.
Manufacturing Process
16.7 grams of monopropionylerythromycin are dissolved in 50 ml of warm
acetone. To the solution are added 6.4 grams of sodium lauryl sulfate
dissolved in 50 ml of distilled water containing 2 ml of glacial acetic acid. The
white crystalline precipitate of rnonopropionylerythromycin lauryl sulfate which
separates is filtered off and dried. It melts at about 135° to 137°C.
Brand name
Antibio-aberel;Apo-erythro-s;Bio-exazol;Biometran;Biomicron;Chemthromycin;Cimetrin;Cusimicina balsamica;Doboiosol;Dowmicyn;Dreimicina;Duozplin vitaminado;Dynabiotal;Ees-200;Ees-400;E-mycine;Endoeritrina;Erimec;Erirobios;Eritrazol;Eritrobios;Eritrobiotic;Eritrocin;Eritrodes;Eritronicol;Eritropan;Eritroveinte;Eritrovienite;Eritrowolf;Eritro-wolf;Erymycin;Eryped;Ery-tar;Erythromictine;Erythro-prat;Ery-toxinal;Erytrodol;Erytro-prot;Eryt-toxinal;Espimina;Estimina;Estomiicina;Estomycin;Fesmicina;Ilosone pulvules;Ilosone ready-mix;Ilothycin;Kesso-mycin;Laucetin;Laurilin;Lauritran;Liferitrin;Loderm;Lubomycina;Lubomycine;Makrocyklina;Manilina;Marocid;Neo-ilolycina;Neo-iloticina;Niux;Novorythro;Propriocin enfante;Prospiocine;Proterytrin;Pulmomas;Purmycin;Ritromin;Roxo chemil;Roxochemil;Rp-mycin;Rubibacter;Selvicin;Spetrasone;Stella micina;Taimoxin;Togerin;Togrien;Tosinova;Tropoxin;Wyamycin s.
Therapeutic Function
Antibacterial
World Health Organization (WHO)
Erythromycin estolate, a macrolide antibiotic, was introduced in
1958 for the treatment of gram-positive infections. By the early 1970s its use had
been associated with a higher incidence of hepatic toxicity than that seen with
other salts and esters of erythromycin. This led to its withdrawal by some
regulatory authorities whereas others required the addition of a warning in the
product information. Evidence that the estolate ester is more hepatotoxic than
other salts or esters has subsequently been disputed. It has been claimed to be the most effective ester for treatment of Legionnaire's disease and preparations remain
widely available.
(Reference: (BMJOAE) British Medical Journal, 286, 1954, 1983)
General Description
Erythromycin estolate, erythromycin propionate lauryl sulfate(Ilosone), is the lauryl sulfate salt of the 2＇-propionateester of erythromycin. Erythromycin estolate is acid stableand absorbed as the propionate ester. The ester undergoesslow hydrolysis in vivo. Only the free base binds to bacterialribosomes. Some evidence, however, suggests that theester is taken up by bacterial cells more rapidly than thefree base and undergoes hydrolysis by bacterial esteraseswithin the cells. The incidence of cholestatic hepatitis is reportedlyhigher with the estolate than with other erythromycinpreparations.Erythromycin estolate occurs as long needles that aresparingly soluble in water but soluble in organic solvents. administration for the treatment of serious infections,such as Legionnaires disease, or when oral administrationis not possible. Solutions are stable for 1 week whenrefrigerated.
Check Digit Verification of cas no
The CAS Registry Mumber 3521-62-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,5,2 and 1 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 3521-62:
(6*3)+(5*5)+(4*2)+(3*1)+(2*6)+(1*2)=68
68 % 10 = 8
So 3521-62-8 is a valid CAS Registry Number.
InChI:InChI=1/C40H71NO14.C12H26O4S/c1-15-27-40(11,48)33(44)22(5)30(43)20(3)18-38(9,47)35(55-37-32(53-28(42)16-2)26(41(12)13)17-21(4)50-37)23(6)31(24(7)36(46)52-27)54-29-19-39(10,49-14)34(45)25(8)51-29;1-2-3-4-5-6-7-8-9-10-11-12-16-17(13,14)15/h20-27,29,31-35,37,44-45,47-48H,15-19H2,1-14H3;2-12H2,1H3,(H,13,14,15)/t20-,21?,22+,23+,24-,25?,26?,27-,29?,31+,32?,33-,34?,35-,37?,38-,39?,40-;/m1./s1
3521-62-8Relevant articles and documents
Optimization of topical erythromycin formulations by ion pairing
Matschiner,Neubert,Wohlrab
, p. 319 - 325 (1995)
Erythromycin (ERY) is used in the topical treatment of acne vulgaris. In order to decrease the amount of microorganisms markedly, the antibiotic must penetrate into the sebaceous follicles. Firstly, the aim of this study was to improve the lipophilicity of ERY by ion pairing. Secondly, a formulation with optimized penetration of the ion pair was developed. Thirdly, the optimized formulation was compared with formulations containing ethanol and with the commercial product Zineryt. The determination of lipophilicity was based on partition coefficients (PC) and on the penetration of ERY into a modified multilayer membrane system (MMS). It was shwon that the penetration of ERY into a lipophilic acceptor system was three times higher when ion pairing between ERY and octadecansulfonate was used in comparison with the penetration of the ERY base alone. The dosage of the antibiotic used can be markedly reduced by optimizing a vehicle for the ion pair.
