2090-05-3 Usage
Description
Calcium benzoate is the calcium salt of benzoic acid, a compound that serves as a preservative in the food industry. It is known for its complex formulas and structures, with a coordination number of eight and the ability to form Ca-O bonds. The degree of hydration is another variable in its composition.
Uses
Used in the Food Industry:
Calcium benzoate is used as a preservative for [application reason] to extend the shelf life and maintain the quality of various food products. It is approved for use as a food additive in the European Union, the United States, Australia, and New Zealand, with the E number E213 (INS number 213).
Flammability and Explosibility
Notclassified
Purification Methods
Calcium benzoate (3H2O) [2090-05-3] M 336.4. Recrystallise it from water (10m/g) between 90o and 0o. [Beilstein 9 I 60, 9 H 85, 9 III 377, 9 IV 280.]
Check Digit Verification of cas no
The CAS Registry Mumber 2090-05-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,0,9 and 0 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 2090-05:
(6*2)+(5*0)+(4*9)+(3*0)+(2*0)+(1*5)=53
53 % 10 = 3
So 2090-05-3 is a valid CAS Registry Number.
InChI:InChI=1/2C7H6O2.Ca/c2*8-7(9)6-4-2-1-3-5-6;/h2*1-5H,(H,8,9);/q;;+2/p-2
2090-05-3Relevant articles and documents
New insights in Mn–Ca chemistry from the use of oximate-based ligands: {MnII/III22Ca2} and {MnIV2Ca2} complexes with relevance to both low- and high-valent states of the oxygen-evolving complex
Alaimo, Alysha A.,Alexandropoulos, Dimitris I.,Lampropoulos, Christos,Stamatatos, Theocharis C.
, p. 39 - 44 (2018)
The initial use of quinoline-2-aldoxime (qaoH) and 2,6-diacetylpyridine dioxime (dapdoH2) in heterometallic Mn–Ca chemistry has afforded a mixed-valence {MnII/III22Ca2} cluster containing several {Mn4CaOx} subunits and a ‘butterfly’-like {MnIV2Ca2} complex, respectively. The one-pot reaction of Mn(O2CPh)2·2H2O and Ca(O2CPh)2·H2O with qaoH and NEt3 in a 1:1:1:1 molar ratio in a solvent mixture comprising MeCN/MeOH gave complex [Mn22Ca2O14(OH)4(OMe)6(O2CPh)22(qao)2(MeCN)2(H2O)4](OH)2 (1; 6MnII/16MnIII) in 20% yield. A similar reaction with that of 1, albeit with Mn(O2CPh)2·2H2O and Ca(NO3)2·4H2O in the presence of dapdoH2 and NEt3, in a molar ratio of 1:1:2:2 in MeCN/MeOH, led to the smaller nuclearity complex [Mn2Ca2(OMe)2(NO3)2(dapdo)4] (2; 2MnIV) in 40% yield. The reported compounds demonstrate structural and magnetic relevance to both low- and high-valent states of the OEC.
