1-Hydroxy-7-azabenzotriazole solution

• Catalog No.: 41996
• CAS Number: 39968-33-7
• M. F.: C5H4N4O
• M. W.: 136.11146

SYNONYMS

• Title: N-羟基-7-偶氮苯并三氮唑 溶液
• IUPAC name: 3H-[1,2,3]triazolo[4,5-b]pyridin-3-ol
• IUPAC Traditional name: 1-hydroxy-7-azabenzotriazole
• Synonyms: 3H-[1,2,3]-Triazolo[4,5-b]pyridin-3-ol; 3H-[1,2,3]-三唑[4,5-b]吡啶-3-醇; HOAt

DATABASE IDS

• MDL Number: MFCD00210053
• CAS Number: 39968-33-7
• Beilstein Number: 1211115
• PubChem SID: 24866289

PROPERTIES

• Concentration: ~0.6 M in DMF
• Empirical Formula (Hill Notation): C5H4N4O
• Impurities: <1.0% water
• Density: 0.973 g/mL at 20 °C
• Flash Point: 58 °C
• Flash Point: 136.4 °F
• Refractive Index: n20/D 1.441
• GHS Signal Word: Danger
• GHS Hazard statements: H226-H302 + H312 + H332-H318-H360D
• European Hazard Symbols: Toxic (T)
• Personal Protective Equipment: Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter
• GHS Precautionary statements: P201-P280-P305 + P351 + P338-P308 + P313
• RID/ADR: UN 1993 3/PG 3
• Risk Statements: 61-20/21-36
• Safety Statements: 53-26-36/37-45
• Hazard Class: 3
• UN Number: 1993
• Packing Group: 3
• German water hazard class: 3

DETAILS

Description (English)

Other Notes
Coupling additive for efficient racemization-free coupling in peptide synthesis;1,2,3 segment coupling.4

Description (简体中文)

Other Notes
偶联添加剂，用于肽合成中的高效无外消旋偶联；1,2,3 片段偶联。4