CAS number

CAS 7803-49-8 Hydroxylamine

CAS 7803-49-8 · EC 232-259-2 · Index No 612-122-00-7 · Index No 612-122-01-4

Where CAS 7803-49-8 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 612-122-00-7

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 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
612-122-00-7	hydroxylamine … % [> 55 % in aqueous solution]	232-259-2	7803-49-8	Unst. Expl. Met. Corr. 1 Carc. 2 Acute Tox. 4 * Acute Tox. 4 * STOT RE 2 * STOT SE 3 Skin Irrit. 2 Eye Dam. 1 Skin Sens. 1 Aquatic Acute 1	H200 H290 H351 H312 H302 H373** H335 H315 H318 H317 H400	GHS01 GHS05 GHS08 GHS07 GHS09 Dgr	H200 H290 H351 H312 H302 H373** H335 H315 H318 H317 H400			B

CLP Annex VI section 3, Index No 612-122-01-4

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 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
612-122-01-4	hydroxylamine …% [≤ 55 % in aqueous solution]	232-259-2	7803-49-8	Met. Corr. 1 Carc. 2 Acute Tox. 4 * Acute Tox. 4 * STOT RE 2 * STOT SE 3 Skin Irrit. 2 Eye Dam. 1 Skin Sens. 1 Aquatic Acute 1	H290 H351 H312 H302 H373** H335 H315 H318 H317 H400	GHS05 GHS08 GHS07 GHS09 Dgr	H290 H351 H312 H302 H373** H335 H315 H318 H317 H400			B

CLP Annex VI section 3, table 2, Index No 612-122-00-7

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
612-122-00-7	hydroxylamine....% [> 55 % in aqueous solution]	232-259-2	7803-49-8	E; R2 Carc. Cat. 3; R40 Xn; R21/22-48/22 Xi; R37/38-41 R43 N; R50	E; Xn; N R: 2-21/22-37/38-40-41-43-48/22-50 S: (2-)26-36/37/39-61		B

CLP Annex VI section 3, table 2, Index No 612-122-01-4

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
612-122-01-4	hydroxylamine …% [≤ 55 % in aqueous solution]	232-259-2	7803-49-8	R5 Carc. Cat. 3; R40 Xn; R21/22-48/22 Xi; R37/38-41 R43 N; R50	Xn; N R: 5-21/22-37/38-40-41-43-48/22-50 S: (2-)26-36/37/39-46-61		B

Cosmetics Regulation Annex II, Reference number 1505

Last changed in the version in force 12 June 2019, by Regulation (EU) 2019/831 and 5 others, the acts that change names · 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
1505	Hydroxylamine	7803-49-8	232-259-2

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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

12 June 2019 · added · Cosmetics Regulation Annex II, Reference number 1505

Recorded in the version in force 12 June 2019, by Regulation (EU) 2019/831 and 5 others, the acts that change names. The change on its version page

Added entries, Annex II, table 1
Identifiers	Reference number	Substance identification
	Reference number	Chemical name/INN	CAS number	EC number
	a	b	c	d
Reference number 1505CAS 7803-49-8EC 232-259-2	1505	Hydroxylamine	7803-49-8	232-259-2

1 December 2010 · amended · CLP Annex VI section 3, Index No 612-122-00-7

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 612-122-00-7CAS 7803-49-8EC 232-259-2	Before	612-122-00-7	hydroxylamine	232-259-2	7803-49-8	Unst. Expl. Met. Corr. 1 Acute Tox. 4 * STOT RE 2 * STOT SE 3 Skin Irrit. 2 Eye Dam. 1 Skin Sens. 1 Aquatic Acute 1	H200 H290 H302 H373 ** H335 H315 H318 H317 H400	GHS01 GHS08 ~~GHS05~~ GHS07 GHS09 Dgr	H200 H290 H302 H373 ** H335 H315 H318 H317 H400		T
Index No 612-122-00-7CAS 7803-49-8EC 232-259-2	After	612-122-00-7	hydroxylamine… % [> 55 % in aqueous solution]	232-259-2	7803-49-8	Unst. Expl. Met. Corr. 1 Carc. 2 Acute Tox. 4 * Acute Tox. 4 * STOT RE 2 * STOT SE 3 Skin Irrit. 2 Eye Dam. 1 Skin Sens. 1 Aquatic Acute 1	H200 H290 H351 H312 H302 H373** H335 H315 H318 H317 H400	GHS01 GHS05 GHS08 GHS07 GHS09 Dgr	H200 H290 H351 H312 H302 H373** H335 H315 H318 H317 H400		B

1 December 2010 · added · CLP Annex VI section 3, Index No 612-122-01-4

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

Added entries, Annex VI section 3, table 1
Identifiers	Index No	International Chemical Identification	EC No	CAS No	Classification		Labelling			Specific Conc. Limits, M-factors	Notes
Identifiers	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 612-122-01-4CAS 7803-49-8EC 232-259-2	612-122-01-4	hydroxylamine …% [≤ 55 % in aqueous solution]	232-259-2	7803-49-8	Met. Corr. 1 Carc. 2 Acute Tox. 4 * Acute Tox. 4 * STOT RE 2 * STOT SE 3 Skin Irrit. 2 Eye Dam. 1 Skin Sens. 1 Aquatic Acute 1	H290 H351 H312 H302 H373** H335 H315 H318 H317 H400	GHS05 GHS08 GHS07 GHS09 Dgr	H290 H351 H312 H302 H373** H335 H315 H318 H317 H400			B

1 December 2010 · amended · CLP Annex VI section 3, table 2, Index No 612-122-00-7

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 612-122-00-7CAS 7803-49-8EC 232-259-2	Before	612-122-00-7	~~hydroxylamine~~	232-259-2	7803-49-8	~~R5 ⊗~~ Xn; ~~R22-48/22~~ Xi; R37/38-41 R43 N; R50	Xn; N R: ~~5-22-37/38-41-43-48/22-50~~ S: ~~(2-)22-26-36/37/39-61~~
Index No 612-122-00-7CAS 7803-49-8EC 232-259-2	After	612-122-00-7	hydroxylamine....% [> 55 % in aqueous solution]	232-259-2	7803-49-8	E; R2 Carc. Cat. 3; R40 Xn; R21/22-48/22 Xi; R37/38-41 R43 N; R50	E; Xn; N R: 2-21/22-37/38-40-41-43-48/22-50 S: (2-)26-36/37/39-61		B

1 December 2010 · added · CLP Annex VI section 3, table 2, Index No 612-122-01-4

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

Added entries, Annex VI section 3, table 2
Identifiers	Index No	International Chemical Identification	EC No	CAS No	Classification	Labelling	Concentration Limits	Notes
Index No 612-122-01-4CAS 7803-49-8EC 232-259-2	612-122-01-4	hydroxylamine …% [≤ 55 % in aqueous solution]	232-259-2	7803-49-8	R5 Carc. Cat. 3; R40 Xn; R21/22-48/22 Xi; R37/38-41 R43 N; R50	Xn; N R: 5-21/22-37/38-40-41-43-48/22-50 S: (2-)26-36/37/39-46-61		B

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)

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