EC number

EC 271-734-9 Hydrocarbons, C2-4

CAS 68606-25-7 · EC 271-734-9 · Index No 649-093-00-5

Where EC 271-734-9 appears: every table entry that prints it among its identifiers, in the newest version of each act this record holds, and every recorded change to those entries. Many entries name a group of substances and print no number, so absence here is not absence from the law. Not legal advice.

Where it appears now

CLP Annex VI section 3, Index No 649-093-00-5

Last changed in the version in force 21 June 2013, by Regulation (EU) No 487/2013 and 4 others, the acts that change names · Annex VI on this site

Annex VI section 3, table 1
Index No	Chemical name	EC No	CAS No	Classification		Labelling			Specific Conc. Limits, M-factors and ATEs	Notes
Index No	Chemical name	EC No	CAS No	Hazard Class and Category Code(s)	Hazard statement Code(s)	Pictogram, Signal Word Code(s)	Hazard statement Code(s)	Suppl. Hazard statement Code(s)	Specific Conc. Limits, M-factors and ATEs	Notes
649-093-00-5	Hydrocarbons, C2-4; Petroleum gas	271-734-9	68606-25-7	Press. Gas Flam. Gas 1 Carc. 1A Muta. 1B	H220 H350 H340	GHS04 GHS02 GHS08 Dgr	H220 H350 H340			K U

CLP Annex VI section 3, table 2, Index No 649-093-00-5

Last changed in the version in force 1 December 2010, by Regulation (EC) No 790/2009, the act that change names · Annex VI on this site

Annex VI section 3, table 2
Index No	International Chemical Identification	EC No	CAS No	Classification	Labelling	Concentration Limits	Notes
649-093-00-5	Hydrocarbons, C2-4; Petroleum gas	271-734-9	68606-25-7	F+; R12 Carc. Cat. 1; R45 Muta. Cat. 2; R46	F+; T R: 45-46-12 S: 53-45		H K

Cosmetics Regulation Annex II, Reference number 561

No change to this entry since the first version the record holds, in force 11 July 2013. · Annex II on this site

Annex II, table 1
Reference number	Substance identification
Reference number	Chemical name/INN	CAS number	EC number
a	b	c	d
561	Hydrocarbons, C2-4, if they contain > 0,1 % w/w Butadiene	68606-25-7	271-734-9

REACH Annex XVII appendix 1, Index No 649-093-00-5

No change to this entry since the first version the record holds, in force 12 October 2008. · Annex XVII on this site

Annex XVII appendix 1, table 1
Substances	Index No	EC No	CAS No	Notes
Hydrocarbons, C2-4; Petroleum gas	649-093-00-5	271-734-9	68606-25-7	H, K

REACH Annex XVII appendix 2, Index No 649-093-00-5

No change to this entry since the first version the record holds, in force 12 October 2008. · Annex XVII on this site

Annex XVII appendix 2, table 1
Substances	Index No	EC No	CAS No	Notes
Hydrocarbons, C2-4; Petroleum gas	649-093-00-5	271-734-9	68606-25-7	K

REACH Annex XVII appendix 4, Index No 649-093-00-5

Last changed in the version in force 11 October 2016, by Regulation (EU) 2016/1688 and Regulation (EU) 2017/706, the acts that change names · Annex XVII on this site

Annex XVII appendix 4, table 1
Substances	Index No	EC No	CAS No	Notes
Hydrocarbons, C2-4; Petroleum gas	649-093-00-5	271-734-9	68606-25-7	H, K

Look up a number

Type a CAS or EC number, with or without its hyphens, or an Index No into the search box at the top of the page: it reads 50000 as CAS 50-00-0. Every number is also listed by act on the substances page.

Its history

11 October 2016 · amended · REACH Annex XVII appendix 4, Index No 649-093-00-5

Recorded in the version in force 11 October 2016, by Regulation (EU) 2016/1688 and Regulation (EU) 2017/706, the acts that change names. Only spacing, dash forms or accents differ. The change on its version page

Amended entries, Annex XVII appendix 4, table 1
Identifiers	Version	Substances	Index No	EC No	CAS No	Notes
Index No 649-093-00-5CAS 68606-25-7EC 271-734-9	Before	Hydrocarbons, C2-4; Petroleum gas	649-093-00-5	271-734-9	68606-25-7	~~H,K~~
Index No 649-093-00-5CAS 68606-25-7EC 271-734-9	After	Hydrocarbons, C2-4; Petroleum gas	649-093-00-5	271-734-9	68606-25-7	H, K

21 June 2013 · amended · CLP Annex VI section 3, Index No 649-093-00-5

Recorded in the version in force 21 June 2013, by Regulation (EU) No 487/2013 and 4 others, the acts that change names. The change on its version page

Amended entries, Annex VI section 3, table 1
Identifiers	Version	Index No	International Chemical Identification	EC No	CAS No	Classification		Labelling			Notes
Identifiers	Version	Index No	International Chemical Identification	EC No	CAS No	Hazard Class and Category Code(s)	Hazard statement Code(s)	Pictogram, Signal Word Code(s)	Hazard statement Code(s)	Suppl. Hazard statement Code(s)
Index No 649-093-00-5CAS 68606-25-7EC 271-734-9	Before	649-093-00-5	Hydrocarbons, C2-4; Petroleum gas	271-734-9	68606-25-7	Press. Gas Flam. Gas 1 Carc. 1B Muta. 1B	H220 H350 H340	GHS04 GHS02 GHS08 Dgr	H220 H350 H340		~~HKU~~
Index No 649-093-00-5CAS 68606-25-7EC 271-734-9	After	649-093-00-5	Hydrocarbons, C2-4; Petroleum gas	271-734-9	68606-25-7	Press. Gas Flam. Gas 1 Carc. 1A Muta. 1B	H220 H350 H340	GHS04 GHS02 GHS08 Dgr	H220 H350 H340		K U

6 March 2013 · amended · REACH Annex XVII appendix 4, Index No 649-093-00-5

Recorded in the version in force 6 March 2013, by Regulation (EU) No 126/2013, the act that change names. Only spacing, dash forms or accents differ. The change on its version page

Amended entries, Annex XVII appendix 4, table 1
Identifiers	Version	Substances	Index No	EC No	CAS No	Notes
Index No 649-093-00-5CAS 68606-25-7EC 271-734-9	Before	Hydrocarbons, C2-4; Petroleum gas	649-093-00-5	271-734-9	68606-25-7	~~H, K~~
Index No 649-093-00-5CAS 68606-25-7EC 271-734-9	After	Hydrocarbons, C2-4; Petroleum gas	649-093-00-5	271-734-9	68606-25-7	H,K

1 December 2010 · amended · CLP Annex VI section 3, Index No 649-093-00-5

Recorded in the version in force 1 December 2010, by Regulation (EC) No 790/2009, the act that change names. The change on its version page

Amended entries, Annex VI section 3, table 1
Identifiers	Version	Index No	International Chemical Identification	EC No	CAS No	Classification		Labelling			Notes
Identifiers	Version	Index No	International Chemical Identification	EC No	CAS No	Hazard Class and Category Code(s)	Hazard statement Code(s)	Pictogram, Signal Word Code(s)	Hazard statement Code(s)	Suppl. Hazard statement Code(s)
Index No 649-093-00-5CAS 68606-25-7EC 271-734-9	Before	649-093-00-5	Hydrocarbons, C2-4; Petroleum gas	271-734-9	68606-25-7	Flam. Gas 1 ~~Press. Gas~~ Carc. 1A Muta. 1B	H220 H350 H340	GHS02 ~~GHS04~~ GHS08 Dgr	H220 H350 H340		~~H K U~~
Index No 649-093-00-5CAS 68606-25-7EC 271-734-9	After	649-093-00-5	Hydrocarbons, C2-4; Petroleum gas	271-734-9	68606-25-7	Press. Gas Flam. Gas 1 Carc. 1B Muta. 1B	H220 H350 H340	GHS04 GHS02 GHS08 Dgr	H220 H350 H340		HKU

1 December 2010 · amended · CLP Annex VI section 3, table 2, Index No 649-093-00-5

Recorded in the version in force 1 December 2010, by Regulation (EC) No 790/2009, the act that change names. The change on its version page

Amended entries, Annex VI section 3, table 2
Identifiers	Version	Index No	International Chemical Identification	EC No	CAS No	Classification	Labelling	Concentration Limits	Notes
Index No 649-093-00-5CAS 68606-25-7EC 271-734-9	Before	649-093-00-5	Hydrocarbons, C2-4; Petroleum gas	271-734-9	68606-25-7	⊗ Carc. Cat. 1; R45 Muta. Cat. 2; R46	T R: ~~45-46~~ S: 53-45		H K
Index No 649-093-00-5CAS 68606-25-7EC 271-734-9	After	649-093-00-5	Hydrocarbons, C2-4; Petroleum gas	271-734-9	68606-25-7	F+; R12 Carc. Cat. 1; R45 Muta. Cat. 2; R46	F+; T R: 45-46-12 S: 53-45		H K

Sources

CLP: every version the record holds; rows read from EUR-Lex consolidated version 02008R1272-20270101, in force 1 January 2027 (external, EUR-Lex)
Cosmetics Regulation: every version the record holds; rows read from EUR-Lex consolidated version 02009R1223-20260518, in force 18 May 2026 (external, EUR-Lex)
REACH: every version the record holds; rows read from EUR-Lex consolidated version 02006R1907-20260622, detected 11 September 2026 (external, EUR-Lex)

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