홈MCP워크벤치Skills
홈워크벤치알림마이페이지
Huagongshe 오픈 프로젝트:[email protected]AI 접속: llms.txt · MCP 가이드개인정보처리방침 · 이용약관 · 지원v1.7.8
돌아가기
Huagongshe화공사 화학 정보 인쇄 보고서 · 연구 참고용
HCID 10419생성일: 2026년 10월 27일

Dimethylacetylene

https://huagongshe.com/ko/chemical/10419

Dimethylacetylene 분자 구조식

식별자 및 물리적 특성

CAS No.503-17-3
분자식C4H6
평균 분자량54.09 g/mol
단동위원소 질량54.04695019 g/mol
SMILESCC#CC
InChIKeyXNMQEEKYCVKGBD-UHFFFAOYSA-N
PubChem CID10419
ChEMBLCHEMBL119108
EC No.207-962-2
DTXSIDDTXSID3060116

화학 및 물리적 성질

XLogP1.5
극성 표면적0
수소 결합 공여자 수0
수소 결합 수용자 수0
회전 가능 결합 수0
무거운 원자 수4
형식 전하0
복잡도42.9
물질 분류Other Classes -> Aliphatics, UnsaturatedFlammable agents - 4th degree
SpringerMaterials PropertiesDunham energy parameter
LogP(분배 계수)1.46
인화점-4 °F (NFPA, 2010)
증기압706.0 [mmHg]
Physical DescriptionCrotonylene appears as a clear colorless liquid with a petroleum-like odor. Less dense than water and insoluble in water. Vapors heavier than air.Clear colorless liquid with an odor of petroleum[CAMEO]
녹는점-32.3 °C
끓는 점26.9 °C
밀도0.715 g/cm3(Temp: 0 °C)

안전 및 규제

GHS 분류DangerH224 (100%): Extremely flammable liquid and vapor [Danger Flammable liquids]P210, P233, P240, P241, P242, P243, P261, P264, P264+P265, P271, P280, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P370+P378, P403+P233, P403+P235, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 76 reports by companies from 9 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
규제 정보Chemical: 2-ButyneThe New Jersey Worker and Community Right to Know Act requires public and private employers to provide information about hazardous substances at their workplaces. (N.J.S.A. 34:5A-1 et. seq.)
기타 안전 정보IMAP assessments - 2-Butyne: Human health tier I assessment
운송 라벨(DOT)Flammable Liquid
화재 위험Excerpt from ERG Guide 128 [Flammable Liquids (Water-Immiscible)]:· HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames.
건강 유해성Excerpt from ERG Guide 128 [Flammable Liquids (Water-Immiscible)]:CAUTION: Petroleum crude oil (UN1267) may contain TOXIC hydrogen sulphide gas.
유해성 요약Highly flammable[CAMEO] Extremely flammableAn irritant[MSDSonline] See Methylacetylene.
운송 번호 및 가이드(DOT)1144 128
반응성 그룹Hydrocarbons, Aliphatic Unsaturated
Reactivity AlertsHighly Flammable
Reactivity ProfileCROTONYLENE may react vigorously with strong oxidizing agents. May react exothermically with reducing agents to release hydrogen gas. In the presence of various catalysts (such as acids) or initiators, may undergo exothermic addition polymerization reactions.
DOT Hazard ClassificationCrotonyleneUN1144Class 3 Flammable and combustible liquid (49 eCFR § 173.120)PG I: the degree of danger presented by the material is great
Air and Water ReactionsHighly flammable. Insoluble in water.
소화Excerpt from ERG Guide 128 [Flammable Liquids (Water-Immiscible)]:
누출 비상 조치· CALL 911. Then call emergency response telephone number on shipping paper. If shipping paper not available or no answer, refer to appropriate telephone number listed on the inside back cover.· ELIMINATE all ignition sources (no smoking, flares, sparks or flames) from immediate area.
응급 처치Excerpt from ERG Guide 128 [Flammable Liquids (Water-Immiscible)]:General First Aid:
노출 관리 및 개인 보호· Wear positive pressure self-contained breathing apparatus (SCBA).
비화재 누출 대응Excerpt from ERG Guide 128 [Flammable Liquids (Water-Immiscible)]:
Isolation and EvacuationExcerpt from ERG Guide 128 [Flammable Liquids (Water-Immiscible)]:Immediate precautionary measure
Personal Protective Equipment (PPE)Excerpt from ERG Guide 128 [Flammable Liquids (Water-Immiscible)]:
Emergency Response Planning GuidelinesCAUTION: The majority of these products have a very low flash point. Use of water spray when fighting fire may be inefficient.
유해 작용Neurotoxin - Acute solvent syndrome
신호 어Danger
유해·위험 문구암호 유해·위험 문구 위험 등급 범주 신호 어 그림 문자 P- 코드 H224