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Huagongshe화공사 화학 정보 인쇄 보고서 · 연구 참고용
HCID 181649생성일: 2026년 10월 23일

HOAt

1-Hydroxy-7-azabenzotriazole · HO-EPCP · [1,2,3]Triazolo[4,5-b]pyridin-3-ol · 3-hydroxytriazolo[4,5-b]pyridine · 1-Hydroxy-7-azabenzo · 1-Hydroxy-7-azabenotriazole · N-Hydroxy-7-azobenzotriazole · 1-Hydroxy-7-azabenzotriazole (HOAt)

https://huagongshe.com/ko/chemical/181649

HOAt 분자 구조식

식별자 및 물리적 특성

CAS No.39968-33-7
분자식C5H4N4O
평균 분자량136.11 g/mol
단동위원소 질량136.03851076 g/mol
SMILESOn1nnc2cccnc21
InChIKeyFPIRBHDGWMWJEP-UHFFFAOYSA-N
PubChem CID181649
EC No.433-840-5
DTXSIDDTXSID0075239

화학 및 물리적 성질

XLogP0.5
극성 표면적63.8
수소 결합 공여자 수1
수소 결합 수용자 수4
회전 가능 결합 수0
무거운 원자 수10
형식 전하0
복잡도131
녹는점213-216°C
끓는 점250.36°C (rough estimate)
밀도0.973 g/mL at 20 °C
굴절률n20/D 1.441
인화점213-216°C
저장 조건Store at RT.
용해도>6.8mg/mL in DMSO
물리적 상태가루
pKa(산도 계수)5.85±0.58(Predicted)
색상White to yellow
주요 응용펩타이드 합성
InChIInChI=1S/C5H4N4O/c10-9-5-4(7-8-9)2-1-3-6-5/h1-3,10H
InChIKeyFPIRBHDGWMWJEP-UHFFFAOYSA-N
SMILESC12N(O)N=NC1=CC=CN=2
EPA3H-1,2,3-Triazolo[4,5-b]pyridine, 3-hydroxy- (39968-33-7)

화학적 성질

Clear, colorless liquid

안전 및 규제

GHS 분류DangerH204 (95.8%): Fire or projection hazard [Warning Explosives]H301 (24.1%): Toxic if swallowed [Danger Acute toxicity, oral]H302 (72.3%): Harmful if swallowed [Warning Acute toxicity, oral]H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]H318 (24.7%): Causes serious eye damage [Danger Serious eye damage/eye irritation]H319 (75.3%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]H335 (26.5%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposureRespiratory tract irritation]P210, P230, P234, P236, P240, P250, P261, P264, P264+P265, P270, P271, P280, P301+P316, P301+P317, P302+P352, P304+P340, P305+P351+P338, P305+P354+P338, P317, P319, P321, P330, P332+P317, P337+P317, P362+P364, P370+P380+P375, P401, P403+P233, P405, P501, and P503 (click each P-code to see the statement)Aggregated GHS information provided per 166 reports by companies from 8 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website.
규제 정보Status: Active Update: 15-12-2008 https://echa.europa.eu/registration-dossier/-/registered-dossier/12962
Hazard Classes and CategoriesExpl. 1.4 (95.8%)Acute Tox. 3 (24.1%)Acute Tox. 4 (72.3%)Skin Irrit. 2 (100%)Eye Dam. 1 (24.7%)Eye Irrit. 2 (75.3%)STOT SE 3 (26.5%)
수질 위해 등급(WGK)1
운송 번호(UN)UN 1993 3/PG 3
관세 코드29332990
위험 문구(R)61-20/21-36-5-36/37/38-11-41-37/38-22-2-36/37
위험 표시T,Xi,F,Xn,E
안전 문구(S)53-45-37/39-26-16-39-35-36-36/37-28-15
포장분류Ⅱ
위험 등급IRRITANTAcute Tox. 4 DermalAcute Tox. 4 InhalationEye Irrit. 2Flam. Liq. 3Repr. 1B
저장 분류3 - Flammable liquids

용도

개요

HOAt (also known as 1-Hydroxy-7-azabenzotriazole) is a benzotriazole compound commonly used as a coupling reagent for amino acids and peptides. HOAt is also used as a solid-phase synthesis reagent for chiral peptide nucleic acids.