1-Hydroxy-benzotriazole tautomer, also known as 1H-benzotriazole-1-ol, is an organic compound with the chemical formula C6H5N3O. It is a tautomer of benzotriazole, a heterocyclic compound with a tricyclic structure consisting of two benzene rings fused to a triazole ring. This tautomer exists in equilibrium with its keto form, 1-hydroxy-benzotriazole, and is characterized by the presence of a hydroxyl group attached to the benzene ring. It is an important intermediate in the synthesis of various benzotriazole derivatives and is used in various chemical reactions, such as peptide coupling and metal chelation. Due to its unique properties, 1-hydroxy-benzotriazole tautomer plays a significant role in the field of organic chemistry and pharmaceuticals.

2273-05-4

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Basic information
1. Product Name: 1-hydroxy-benzotriazole tautomer
2. Synonyms:
3. CAS NO:2273-05-4
4. Molecular Formula:
5. Molecular Weight: 135.125
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: N/A
5. Density: N/A
6. Refractive Index: N/A
7. Storage Temp.: N/A
8. Solubility: N/A
9. CAS DataBase Reference: 1-hydroxy-benzotriazole tautomer(CAS DataBase Reference)
10. NIST Chemistry Reference: 1-hydroxy-benzotriazole tautomer(2273-05-4)
11. EPA Substance Registry System: 1-hydroxy-benzotriazole tautomer(2273-05-4)
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: 2273-05-4(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 2273-05-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,2,7 and 3 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 2273-05:
(6*2)+(5*2)+(4*7)+(3*3)+(2*0)+(1*5)=64
64 % 10 = 4
So 2273-05-4 is a valid CAS Registry Number.

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