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91921-56-1

insulin B (20-30) is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

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  • 91921-56-1 Structure

  • Basic information

    1. Product Name: insulin B (20-30)
    2. Synonyms: insulin B (20-30)
    3. CAS NO:91921-56-1
    4. Molecular Formula: C60H85N15O16
    5. Molecular Weight: 1272.4078
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 91921-56-1.mol

  • Chemical Properties

    1. Melting Point: N/A
    2. Boiling Point: °Cat760mmHg
    3. Flash Point: °C
    4. Appearance: /
    5. Density: 1.44g/cm3
    6. Refractive Index: 1.66
    7. Storage Temp.: N/A
    8. Solubility: N/A
    9. CAS DataBase Reference: insulin B (20-30)(CAS DataBase Reference)
    10. NIST Chemistry Reference: insulin B (20-30)(91921-56-1)
    11. EPA Substance Registry System: insulin B (20-30)(91921-56-1)

  • 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: 91921-56-1(Hazardous Substances Data)

91921-56-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91921-56-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,9,2 and 1 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 91921-56:
(7*9)+(6*1)+(5*9)+(4*2)+(3*1)+(2*5)+(1*6)=141
141 % 10 = 1
So 91921-56-1 is a valid CAS Registry Number.
InChI:InChI=1/C60H85N15O16/c1-34(59(90)91)67-52(83)41(17-9-10-26-61)71-57(88)46-19-12-28-75(46)58(89)50(35(2)76)74-56(87)45(31-38-20-22-39(77)23-21-38)73-55(86)44(30-37-15-7-4-8-16-37)72-54(85)43(29-36-13-5-3-6-14-36)69-48(79)33-66-51(82)40(18-11-27-65-60(63)64)70-53(84)42(24-25-49(80)81)68-47(78)32-62/h3-8,13-16,20-23,34-35,40-46,50,76-77H,9-12,17-19,24-33,61-62H2,1-2H3,(H,66,82)(H,67,83)(H,68,78)(H,69,79)(H,70,84)(H,71,88)(H,72,85)(H,73,86)(H,74,87)(H,80,81)(H,90,91)(H4,63,64,65)/t34-,35+,40-,41-,42-,43-,44-,45-,46-,50-/m0/s1

91921-56-1Upstream product

91921-56-1Downstream Products

91921-56-1Relevant articles and documents

Purification and characterization of a cysteine endopeptidase from vasconcellea quercifolia A. St.-Hil. latex displaying high substrate specificity

Torres, M. Jose,Trejo, Sebastian A.,Martin, M. Ines,Natalucci, Claudia L.,AvileS, Francesc X.,Lopez, Laura M.I.

experimental part, p. 11027 - 11035 (2011/06/21)

A new proteolytic preparation from Vasconcellea quercifolia ("oak leaved papaya") latex containing several cysteine endopeptidases with high proteolytic activity has been obtained. The specific activity of the new enzymatic preparation (VQ) was higher than that of Carica papaya latex. VQ was able to coagulate milk and to hydrolyze caseins and then could be used to produce cheeses and/or casein hydrolysates. Ion exchange chromatography of VQ allowed the isolation of a new protease, named quercifoliain I, homogeneous when analyzed by SDS-PAGE, IEF and MALDI-TOF-MS. Molecular mass was 24195 Da, and its isoelectric point was >9.3. The N-terminal sequence was determined (YPESVDWRQ). Insulin B-chain cleavage showed higher specificity than that of papain and was restricted to glycyl and alanyl residues at P' position. The tryptic peptide mass fingerprint of quercifoliain I analyzed with the MASCOT search tool did not find a match with papain or any other plant cysteine proteases. 2010 American Chemical Society.

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