The chemical sequence "CHO-L-Val-Gly-L-Ala-D-Leu-L-Ala-D-Val-L-Val-D-Val-L-Trp-D-Leu-L-Trp-D-Leu-L-Trp-D-Leu-L-Trp-NHEtOH" represents a peptide, which is a chain of amino acids. This specific peptide is composed of a series of L- and D-amino acids, where L- refers to the naturally occurring, left-handed isomers, and D- refers to the right-handed isomers, which are less common in proteins found in nature. The sequence starts with an aldehyde group (CHO) and ends with an ethanolamine group (NHEtOH), which are modifications that can affect the peptide's properties and function. The peptide contains a repeating pattern of tryptophan (Trp) and leucine (Leu) residues, which may be significant for its structure and potential biological activity. This particular sequence does not correspond to a known protein or peptide with a well-documented function, suggesting it may be a synthetic construct or a component of a larger, unidentified biological system.

4419-81-2

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Basic information
1. Product Name: CHO-L-Val-Gly-L-Ala-D-Leu-L-Ala-D-Val-L-Val-D-Val-L-Trp-D-Leu-L-Trp-D-Leu-L-Trp-D-Leu-L-Trp-NHEtOH
2. Synonyms: [Val1]gramicidin A;1-L-Valinegramicidin A;CHO-L-Val-Gly-L-Ala-D-Leu-L-Ala-D-Val-L-Val-D-Val-L-Trp-D-Leu-L-Trp-D-Leu-L-Trp-D-Leu-L-Trp-NHEtOH;Gramicidin A 1-L-Val
3. CAS NO:4419-81-2
4. Molecular Formula: C99H140N20O17
5. Molecular Weight: 1882.33
6. EINECS: N/A
7. Product Categories: N/A
Chemical Properties
1. Melting Point: N/A
2. Boiling Point: N/A
3. Flash Point: N/A
4. Appearance: /
5. Density: N/A
6. Refractive Index: N/A
7. Storage Temp.: N/A
8. Solubility: N/A
9. CAS DataBase Reference: CHO-L-Val-Gly-L-Ala-D-Leu-L-Ala-D-Val-L-Val-D-Val-L-Trp-D-Leu-L-Trp-D-Leu-L-Trp-D-Leu-L-Trp-NHEtOH(CAS DataBase Reference)
10. NIST Chemistry Reference: CHO-L-Val-Gly-L-Ala-D-Leu-L-Ala-D-Val-L-Val-D-Val-L-Trp-D-Leu-L-Trp-D-Leu-L-Trp-D-Leu-L-Trp-NHEtOH(4419-81-2)
11. EPA Substance Registry System: CHO-L-Val-Gly-L-Ala-D-Leu-L-Ala-D-Val-L-Val-D-Val-L-Trp-D-Leu-L-Trp-D-Leu-L-Trp-D-Leu-L-Trp-NHEtOH(4419-81-2)
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: 4419-81-2(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 4419-81-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,4,1 and 9 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 4419-81:
(6*4)+(5*4)+(4*1)+(3*9)+(2*8)+(1*1)=92
92 % 10 = 2
So 4419-81-2 is a valid CAS Registry Number.

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