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CAS No 9001-98-3 , Rennin

  • Name: Rennin
  • Synonyms: Chymosin; Stamix 1150; Lab; E.C. 3.4.4.3; Renninomezenterin; E.C. 3.4.23.4; Maxiren;Milk-clotting protease;Abomasalenzyme; Chymogen; Aniren;Rennin; Rennase;
  • CAS Registry Number:
  • Safety Statements: When heated to decomposition it emits acrid smoke and irritating fumes.
  • Hazard Symbols: Xn: Harmful;
  • EINECS: 232-645-0
  • Molecular Weight: 0
  • Risk Statements: 36/37/38-42
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9001-98-3 Rennin

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9001-98-3 Chymosin

  • United States Alfa Chem []
  • Tel: +1-(516)-504-0059, 800-375-6869
  • Fax: +1-(516)-504-0039
  • Address: 2 Harbor Way, Kings Point, New York 11024, ,United States
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9001-98-3 Rennin

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9001-98-3 Rennin

  • United Kingdom DSM United Kingdom Ltd [Manufacturers]
  • Tel: 44 1527 590590
  • Fax: 44 1527 590555
  • Address: Div. of DSM N.V., DSM House, Papermill Dr., Redditch, Worcestershire, B98 8QJ, UK QJ,QJUnited Kingdom
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9001-98-3 Rennin

  • Rennin
  • Germany ABCR GmbH & Co KG [Manufacturer]
  • Tel: +49 721 95061-0
  • Fax: +49 721 95061-80
  • Address: Im Schlehert 10
    76187 Karlsruhe
    Germany ,Germany
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9001-98-3 rennin

  • rennin
  • Germany CHEMOS GmbH [Manufacturer]
  • Tel: 0049 9402/9336 0
  • Fax: 0049 9402/9336 13
  • Address: CHEMOS GmbH
    Werner-von-Siemensstr. 3
    93128 Regenstauf
    Germany ,Germany
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9001-98-3 RENNIN FROM CALF STOMACH ACTIVITY: 20 UNITS MG

  • RENNIN FROM CALF STOMACH ACTIVITY: 20 UNITS MG
  • Hong kong Advanced Technology & Industrial Co., Ltd. [Manufacturer]
  • Tel: (852) 2390 2293/ (852) 2394 5546
  • Fax: (852) 2789 8314
  • Address: Unit B, 1/F., Cheong Shing Bldg.,
    17 Walnut St., Tai Kok Tsui, Kln,
    Hong Kong ,Hong kong
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9001-98-3 RENNIN

  • China Nanjing Chemlin Chemical Industry Co.,Ltd. [Manufacturer]
  • Tel: +86 25 8369-7070/ +86 138 51816776 (Mobile)
  • Fax: +86 25 8345-3275
  • Address: Rm.902 Longyin Plaza,
    No. 217 Zhongshan Rd.
    (N)Nanjing 210009,China ,China
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References of Rennin
Title: Rennin
CAS Registry Number: 9001-98-3
Synonyms: Chymosin; rennase; lab; abomasal enzyme; Lab Ferment (German)
Literature References: Mol wt about 31,000. The predominant milk-clotting enzyme from the true stomach or abomasum of the suckling calf: Tauber, Kleiner, J. Biol. Chem. 96, 745 (1932). Secreted as an inactive precursor called prorennin and converted in the acid environment of the stomach to the active enzyme. Obtained by extracting dried strips of calf stomach with 5 to 10% NaCl soln contg boric acid for 5 days; improved process: Keil, US 2339931 (1942). Structure consists of a single polypeptide chain with internal disulfide bridges. Amino acid composition: Schwander et al., Helv. Chim. Acta 35, 553 (1952). Determn of N-terminal amino acid sequence: Foltmann, Philos. Trans. R. Soc. London 257B, 147 (1970). Homologies in amino acid sequences of rennin and pepsin: Tang, Hartley, Biochem. J. 118, 611 (1970). Reviews: Berridge, Adv. Enzymol. 15, 423 (1954); Foltmann, Milk Proteins 2, 217 (1971).
Properties: Yellowish powder, grains or scales. Peculiar, not unpleasant odor. Characteristic, slightly salty taste. Slightly hygroscopic. Can be purified enough to crystallize. The dry substance (sometimes diluted with NaCl or lactose) is stable, aq solns are not. Partially sol in water, dil alcohol. Insol at pH values near its isoelectric point of pH 4.5. pH of aq soln 5.8 (acceptable range 5.3-6.3). Strongly affected by ultraviolet (sunlight). Causes milk to coagulate, optimum temp 37-43°, optimum pH of milk 5.8. Not active below 15° nor above 55°. When a commercial prepn is labeled 1:10,000 it means that one gram will curdle 10 liters of milk at 35° within 40 minutes. Other strengths are 1:100,000 to 1:7,600,000.
Use: Rennet (a dried extract contg rennin) is used in the manuf of cheese and rennet casein, also sold retail for the making of junket or rennet custards.
Therap-Cat: Digestive enzyme.
Keywords: Digestive Aid; Enzyme; Digestive.